Tricyclic fused derivatives of 1-(cyclo)alkyl pyridin-2-one useful for the treatment of cancer

ABSTRACT

The present disclosure described heterocyclic compounds of Formula I or, its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof and pharmaceutical compositions containing them as the active ingredient. The present disclosure also describes the synthesis and characterization of aforementioned compounds to exhibit high anticancer activity. The compounds of the present disclosure are useful as medicaments and their use in the manufacture of medicaments for treatment, prevention or suppression of diseases, and conditions mediated by one or more BET family of bromodomains.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is the National Stage of International Patent Application No. PCT/IN2016/050098, filed Mar. 30, 2016, which claims priority from India Provisional Patent Application No. 1636/CHE/2015, filed Mar. 30, 2015. The contents of these applications are incorporated herein by reference in their entirety.

TECHNICAL FIELD

The present disclosure relates to the field of medicinal chemistry and more particularly to the development of compounds as inhibitors of one or more BET family of bromodomians. The present disclosure relates to heterocyclic compounds of the Formula (I), its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof and pharmaceutical compositions containing them as the active ingredient.

The present disclosure further relates to the synthesis and characterization of aforementioned compounds to exhibit anticancer activity. The compounds of the present disclosure are useful as medicaments and their use in the manufacture of medicaments for treatment, prevention or suppression of diseases, and conditions mediated by one or more BET family of bromodomains.

BACKGROUND

Transcriptional regulation is a major event in cell differentiation, proliferation and apoptosis. Transcriptional activation of a set of genes determines cellular function and is tightly regulated by a variety of factors. One of the regulatory mechanisms involved in this process is an alteration in the tertiary structure of DNA, which affects transcription factors to their target DNA regiments. Nucleosomal integrity is regulated by the acetylation status of the core histone, with the result being permissiveness to transcription. The regulations of transcription factor are thought to involve changes in the structure of chromatin. Changing the affinity of histone proteins for coiled DNA in the nucleosome alters the structure of chromatin. Hypoacetylated histones are believed to have greater affinity to the DNA and form a tightly bound DNA-histone complex and render the DNA inaccessible to transcriptional regulation. The acetylating status of the histone is governed by the balanced activities of the histone acetyl transferase (HAT) and histone deacetylase (HDAC). The bromodomain and extraterminal family of proteins called as BET proteins are readers of the acetyl status of histone and changes the chromatin structure and gene expression.

The BET family of bromodomain containing proteins comprises four proteins, namely BRD2, BRD3, BRD4 and BRDT, which are widely expressed in various tissues, except BRDT which is localized in the testes. Each of the BRD proteins contains tandem bromodomains capable of binding to acetylated lysine residues in histones H3 and H4. It has been reported that BRD2 and BRD3 are associated with histones along actively transcribed genes and involved in facilitating transcriptional elongation (Leroy et al, Mol. Cell. 2008 30(1):51-60), while BRD4 appears to be involved in the recruitment of the pTEF-[beta] complex to nuclesomes, which results in phosphorylation of RNA polymerase II and increases the transcriptional elongation of neighboring genes. (Hargreaves et al, Cell, 2009 138(1): 129-145).

BRD4 or BRD3 may fuse with NUT (nuclear protein in testis) forming novel fusion oncogenes, BRD4-NUT or BRD3-NUT, in a highly malignant form of epithelial neoplasia (French et al. Cancer Research, 2003, 63, 304-307 and French et al. Journal of Clinical Oncology, 2004, 22 (20), 4135-4139). Data suggests that BRD-NUT fusion proteins contribute to carcinogenesis (Oncogene, 2008, 27, 2237-2242). A BET protein which includes BRD4 have been shown to be important regulators of gene expression profiles in numerous diseases such as cancer, diabetes, obesity, cardiovascular and renal disorders. Currently several BRD4 inhibitors is in various stages of clinical trial for cancer such as IBET-762, JQ1, OTX-015 and RVX-2135 (P. Filippakopoulos, et. al., Nature Review Drug Discovery, 13, 2014, 337-356, M. Brand, et. al., ACS Chem. Biol, 10, 2015, 22-39).

A tricyclic aryl compound as squalene synthase inhibitors has been disclosed in WO2008133288 for the treatment of hypercholesterolemia, hypertriglyceridemia and hypo-HDL cholesterolemia and/or arteriosclerosis.

Masanori Ichikawa et. al published a paper (ACS Med. Chem. Lett., 2013, 932-936) describing the squalene synthase inhibitors DF4611 (B) and also Nils Griebenow, et. al. published a paper (Bioorg. Med. Chem. Lett. 21, 2011, 3648-3653) on the synthesis of novel 4H,6H-[2]benzoxepino[4,5-c][1,2]oxazoles (C) as squalene synthase inhibitors.

Although, there are several chemotherapies and target therapies based drugs for cancer, an effective cure for cancer still remains elusive. Further, development of acquired resistance and disease relapse are major issues that still need to be addressed. Even though several bromodomain inhibitors are known in the clinic as well as in the preclinic, still remains a need for finding potent bromodomain inhibitors having desirable drug like properties.

Therefore, the present invention provides novel and drug like molecules having good potency as BRD4 inhibitors which can inhibit the binding of acetylated lysine residue of histone for controlling gene expressions in various diseases.

SUMMARY

The present disclosure is based on the development of compounds of Formula I (see below) exhibiting advantageous anti-cancer properties. Thus, the present disclosure provides a compound of Formula I

or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof,

wherein -------- is a single bond or a double bond; X is selected from —O— or —N—; n is 0-6; R₁ is selected from alkyl or cycloalkyl; R₂ and R₃ are independently selected from hydrogen, halogen, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, alkyl, haloalkyl, alkoxy, haloalkoxy; arylalkoxy; cycloalkyl, cycloalkyloxy, aryl, heterocyclyl, heteroaryl, alkylamino, —COOR_(a), —C(O)R_(b), —C(S)R_(a), —C(O)NR_(a)R_(b), —C(S)NR_(a)R_(b), —NR^(a)C(O)NR_(b)R_(c), NR_(a)C(S)NR_(b)R_(c), —N(R_(a))SOR_(b), —N(R_(a))SO₂R_(b), —NR_(a)C(O)OR_(b), —NR_(a)R_(b), —NR_(a)C(O)R_(b)—, NR_(a)C(S)R_(b)—, —SONR_(a)R_(b)—, —SO₂NR_(a)R_(b)—, —OR_(a), —OR_(a)C(O)OR_(b)—, —OC(O)NR_(a)R_(b), OC(O)R_(a), —OC(O)NR_(a)R_(b)—, —R_(a)NR_(b)R_(c), —R_(a)OR_(b)—, —SR_(a), —SOR_(a) or —SO₂R_(a), wherein R_(a), R_(b) and R^(c) are independently selected from hydrogenalkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroarylorhetroarylalkyl; R₄ is selected from hydrogen, alkyl, cycloalkyl, cyloalkenyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, heteroarylalkyl or haloalkyl; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅; and R₅ and R₆ are independently selected from hydrogen, hydroxyl, aryl, heteroaryl, cycloalkyl or alkyl.

The present disclosure relates to a composition comprising a compound of Formula (I) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof together with a carrier.

The present disclosure relates to a pharmaceutical composition comprising a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, together with a pharmaceutically acceptable carrier, optionally in combination with one or more other pharmaceutical compositions.

The present disclosure further relates to a method of preventing or treating proliferative diseases by administering a therapeutic effective amount of novel compound of the Formula (I) or a pharmaceutically acceptable salt and/or prodrug.

The present disclosure relates to a process of preparation of compound of Formula (I) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof.

These and other features, aspects, and advantages of the present subject matter will become better understood with reference to the following description. This summary is provided to introduce a selection of concepts in a simplified form. This summary is not intended to identify key features or essential features of the disclosure, nor is it intended to be used to limit the scope of the subject matter.

DETAILED DESCRIPTION

Those skilled in the art will be aware that the present disclosure is subject to variations and modifications other than those specifically described. It is to be understood that the present disclosure includes all such variations and modifications. The disclosure also includes all such steps, features, compositions and compounds referred to or indicated in this specification, individually or collectively, and any and all combinations of any or more of such steps or features.

Definitions

For convenience, before further description of the present disclosure, certain terms employed in the specification, and examples are collected here. These definitions should be read in the light of the remainder of the disclosure and understood as by a person of skill in the art. The terms used herein have the meanings recognized and known to those of skill in the art, however, for convenience and completeness, particular terms and their meanings are set forth below.

The articles “a”, “an” and “the” are used to refer to one or to more than one (i.e., to at least one) of the grammatical object of the article.

The terms “comprise” and “comprising” are used in the inclusive, open sense, meaning that additional elements may be included. Throughout this specification, unless the context requires otherwise the word “comprise”, and variations, such as “comprises” and “comprising”, will be understood to imply the inclusion of a stated element or step or group of element or steps but not the exclusion of any other element or step or group of element or steps.

The term “including” is used to mean “including but not limited to”. “Including” and “including but not limited to” are used interchangeably.

In the structural formulae given herein and throughout the present disclosure, the following terms have been indicated meaning, unless specifically stated otherwise.

The term “alkyl” refers to straight or branched aliphatic hydrocarbon chain having the 1-8 carbon atoms. This term is exemplified by groups such as n-butyl, isobutyl, t-butyl, n-hexyl and the like. The groups may be optionally substituted.

The term “aryl” refers to aromatic radicals having 5 to 18 carbon atoms having a single ring (e.g. phenyl) or multiple rings (e.g. biphenyl), or multiple condensed (fused) rings (e.g. naphthyl or anthranyl), which may be optionally substituted by one or more substituents. Preferred aryl groups, without limitation, include phenyl, naphthyl, indanyl, biphenyl and the like.

The term “arylalkyl” refers to an aryl group directly bonded to an alkyl group, which may be optionally substituted by one or more substituents. Preferred arylalkyl groups, without limitation, include —CH₂C₆H₅, —C₂H₄C₆H₅ and the like.

The term “heterocyclyl” refers to a heterocyclic ring radical which may be optionally substituted by one or more substituents. The heterocyclyl ring radical may be attached to the main structure at any heteroatom or carbon atom that results in the creation of a stable structure.

Furthermore the term “heterocyclyl” refers to a stable 2 to 18 membered rings radical, which consists of carbon atoms and from one to five heteroatom's selected from nitrogen, phosphorus, oxygen and sulfur. For purposes of this invention the heterocyclic ring radical may be monocyclic, bicyclic or tricyclic ring systems, and the nitrogen, phosphorus, carbon, oxygen or sulfur atoms in the heterocyclic ring radical may be optionally oxidized to various oxidation states. In addition, the nitrogen atom may be optionally quaternized; and the ring radical may be partially or fully saturated. Preferred heterocyclyl groups, without limitation, include azetidinyl, acridinyl, benzodioxolyl, benzodioxanyl, benzofuranyl, carbazolyl, cinnolinyl, dioxolanyl, indolizinyl, naphthyridinyl, perhydroazepinyl, phenazinyl, phenothiazinyl, phenoxazinyl, phthalazinyl, pyrazolyl, pyridyl, pteridinyl, purinyl, quinazolinyl, qunioxalinyl, quinolinyl, isoquinolinyl, tetrazolyl, imidazolyl, tetrahydroisoquinolinyl, piperidinyl, piperazinyl, homopiperazinyl, 2-oxoazepinyl, azepinyl, pyrrolyl, 4-piperidonyl, pyrrolidinyl, pyrazinyl, pyrimidinyl, pyridazinyl, oxazolyl, oxazolinyl, triazolyl, indanyl, isoxazolyl, isoxazolidinyl, thiazolyl, thiazolinyl, thiazolidinyl, isothiazolyl, quinuclidinyl, isothiazolidinyl, indolyl, isoindolyl, indolinyl, isoindolinyl, octahydroindolyl, octahydroisoindolyl, quinolyl, isoquinolyl, decahydroisoquinolyl, benzimidazolyl, thiadiazolyl, benzopyranyl, benzothiazolyl, benzooxazolyl, thienyl, morpholinyl, thiomorpholinyl, thiamorpholinyl sulfoxide, furyl, tetrahydrofuryl, tetrahydropyranyl, chromanyl and isochromanyl.

The term “heteroaryl” refers to a heteroaromatic carbocyclic group of 2 to 18 carbon atoms having a single ring (e.g. pyridine) or multiple rings (e.g. isoquinoline), or multiple condensed (fused) rings. Preferred heteroaryls include thiophene, pyrazole, thiazole, pyridine and the like. The groups may be optionally substituted.

The term “heteroarylalkyl” refers to a heteroaryl group directly bonded to an alkyl group, which may be optionally substituted by one or more substituents. Preferred heteroarylalkyl groups, without limitation, include-CH₂-pyridinyl, —C₂H₄— furyl and the like.

The term “cycloalkyl” refers to non-aromatic mono or polycyclic ring system of about 3 to 12 carbon atoms, which may be optionally substituted by one or more substituent's. The polycyclic ring denotes hydrocarbon systems containing two or more ring systems with one or more ring carbon atoms in common, i.e., a spiro, fused or bridged structures. Preferred cycloalkyl groups include, without limitation, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclooctanyl, perhydronaphthyl, adamantyl, noradamantyl and norbornyl groups, bridged cyclic groups or spirobicyclic groups e.g. spiro [4.4] non-2-yl and the like.

The term “alkoxy” refers to an alkyl group attached via an oxygen linkage to the rest of the molecule, which may be optionally substituted by one or more substituents. Preferred alkoxy groups, without limitation, include —OCH₃, —OC₂H₅ and the like.

The term “alkylthio” refers to an alkyl group attached via a sulfur linkage to the rest of the molecule, which may be optionally substituted by one or more substituents. Preferred alkylthio groups, without limitation, include —SCH₃, —SC₂H₅ and the like.

The term “alkylamino” refers to an alkyl group as defined above attached via amino linkage to the rest of the molecule, which may be optionally substituted by one or more substituent's. Preferred alkylamino groups, without limitation include-NHCH₃, —N(CH₃)₂, and the like.

The term “alkenyl” refers to an aliphatic hydrocarbon group containing a carbon-carbon double bond and which may be straight or branched chain having about 2 to 10 carbon atoms, which may be optionally substituted by one or more substituent's. Preferred alkenyl groups, without limitation, include ethenyl, 1-propenyl, 2-propenyl, iso-propenyl, 2-methyl-1-propenyl, 1-butenyl, 2-butenyl and the like.

The term “alkynyl” refers to a straight or branched hydrocarbyl radicals having at least one carbon-carbon triple bond and having in the range of 2-12 carbon atoms, which may be optionally substituted by one or more substituent's. Preferred alkynyl groups include, without limitation, ethynyl, propynyl, butynyl and the like.

“Halo” or “Halogen”, alone or in combination with any other term means halogens such as chloro (Cl), fluoro (F), bromo (Br) and iodo (I).

Furthermore, the compound of formula (I) can be its derivatives, analogs, tautomeric forms, stereoisomer's, diastereomers, geometrical isomers, polymorphs, solvates, intermediates, metabolites, prodrugs or pharmaceutically acceptable salts and compositions.

The compounds described herein may contain one or more chiral centers and/or double bonds and therefore, may exist as stereoisomers, such as double-bond isomers (i.e., geometric isomers), regioisomers, enantiomers or diastereomers. Accordingly, the chemical structures depicted herein encompass all possible enantiomers and stereoisomers of the illustrated or identified compounds including the stereoisomerically pure form (e.g., geometrically pure, enantiomerically pure or diastereomerically pure) and enantiomeric and stereoisomeric mixtures. Enantiomeric and stereoisomeric mixtures can be resolved into their component enantiomers or stereoisomers using separation techniques or chiral synthesis techniques well known to the person skilled in the art. The compounds may also exist in several tautomeric forms including the enol form, the keto form and mixtures thereof. Accordingly, the chemical structures depicted herein encompass all possible tautomeric forms of the illustrated or identified compounds. It is also understood that some isomeric form such as diastereomers, enantiomers and geometrical isomers can be separated by physical and/or chemical methods and by those skilled in the art. Pharmaceutically acceptable solvates may be hydrates or comprising of other solvents of crystallization such as alcohols, ether, and the like.

The term “solvate”, as used herein, refers to a crystal form of a substance which contains solvent.

The term “hydrate” refers to a solvate wherein the solvent is water.

The phrase “pharmaceutical acceptable” refers to compounds or compositions that are physiologically tolerable and do not typically produce allergic or similar untoward reaction, including but not limited to gastric upset or dizziness when administered to mammal.

Pharmaceutically acceptable salts forming part of this invention include salts derived from inorganic bases such as like Li, Na, K, Ca, Mg, Fe, Cu, Zn and Mn; salts of organic bases such as N, N′-diacetylethylenediamine, glucamine, triethylamine, choline, dicyclohexylamine, benzylamine, trialkylamine, thiamine, guanidine, diethanolamine, α-phenylethylamine, piperidine, morpholine, pyridine, hydroxyethylpyrrolidine, hydroxyethylpiperidine, ammonium, substituted ammonium salts, aluminum salts and the like. Salts also include amino acid salts such as glycine, alanine, cystine, cysteine, lysine, arginine, phenylalanine, guanidine etc. Salts may include acid addition salts where appropriate which are sulphates, nitrates, phosphates, perchlorates, borates, hydrohalides, acetates, tartrates, maleates, citrates, succinates, palmoates, methanesulphonates, tosylates, benzoates, salicylates, hydroxynaphthoates, benzenesulfonates, ascorbates, glycerophosphates, ketoglutarates and the like.

As used herein, the term “substituted” is contemplated to include all permissible substituents of organic compounds. In a broad aspect, the permissible substituents include acyclic and cyclic, branched and unbranched, carbocyclic and heterocyclic, aromatic and nonaromatic substituents of organic compounds. Illustrative substituents, for example, include those described herein above. The permissible substituents can be one or more and the same or different for appropriate organic compounds. For purposes of this disclosure, the heteroatoms such as nitrogen may have hydrogen substituents and/or any permissible substituents of organic compounds described herein which satisfy the valences of the heteroatoms.

The term “effective amount” means an amount of a compound or composition which is sufficient enough to significantly and positively modify the symptoms and/or conditions to be treated (e.g., provide a positive clinical response). The effective amount of an active ingredient for use in a pharmaceutical composition will vary with the particular condition being treated, the severity of the condition, the duration of the treatment, the nature of concurrent therapy, the particular active ingredient(s) being employed, the particular pharmaceutically-acceptable excipient(s)/carrier(s) utilized, the route of administration, and like factors within the knowledge and expertise of the attending physician

The compounds described herein can also be prepared in any solid or liquid physical form, for example the compound can be in a crystalline form, in amorphous form and have any particle size. Furthermore, the compound particles may be micronized or nanoized, or may be agglomerated, particulate granules, powders, oils, oily suspensions or any other form of solid or liquid physical forms.

The compounds described herein may also exhibit polymorphism. This invention further includes different polymorphs of the compounds of the present invention.

The term “polymorphs” refers to crystal forms of the same molecule, and different polymorphs may have different physical properties such as, for example, melting temperatures, heats of fusion, solubilities, dissolution rates and/or vibrational spectra as a result of the arrangement or conformation of the molecules in the crystal lattice.

The term “prodrugs” refers to the precursor of the compound of formula (I), which on administration undergoes chemical conversion by metabolic processes before becoming active pharmacological substances. In general, such prodrugs will be functional derivatives of a compound of the invention, which are readily convertible in vivo into a compound of the invention.

The present disclosure relates to a compound of Formula I

or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein ---- ---- is a single bond or a double bond; X is selected from —O— or —N—; n is 0-6; R₁ is selected from alkyl or cycloalkyl; R₂ and R₃ are independently selected from hydrogen, halogen, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, alkyl, haloalkyl, alkoxy, haloalkoxy; arylalkoxy; cycloalkyl, cycloalkyloxy, aryl, heterocyclyl, heteroaryl, alkylamino, —COOR_(a), —C(O)R_(b), —C(S)R_(a), —C(O)NR_(a)R_(b), —C(S)NR_(a)R_(b), —NR^(a)C(O)NR_(b)R_(c), NR_(a)C(S)NR_(b)R_(c), —N(R_(a))SOR_(b), —N(R_(a))SO₂R_(b), —NR_(a)C(O)OR_(b), —NR_(a)R_(b), —NR_(a)C(O)R_(b)—, NR_(a)C(S)R_(b)—, —SONR_(a)R_(b)—, —SO₂NR_(a)R_(b)—, —OR_(a), —OR_(a)C(O)OR_(b)—, —OC(O)NR_(a)R_(b), OC(O)R_(a), —OC(O)NR_(a)R_(b)—, —R_(a)NR_(b)R_(c), —R_(a)OR_(b)—, —SR_(a), —SOR_(a) or —SO₂R_(a), wherein R_(a), R_(b) and R^(c) are independently selected from hydrogenalkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroarylorhetroarylalkyl; R₄ is selected from hydrogen, alkyl, cycloalkyl, cyloalkenyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, heteroarylalkyl or haloalkyl is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅, and R₅ and R₆ are independently selected from hydrogen, hydroxyl, aryl, heteroaryl, cycloalkyl or alkyl.

According to an embodiment, the present disclosure relates to a compound of the Formula (I) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein ---- is a single bond or a double bond; X is selected from —O— or —N—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈cycloalkyl; R₂ and R₃ are independently selected from hydrogen, fluoro, chloro, bromo, iodo, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈alkyl, C₁-C₈haloalkyl independently substituted with up to three halogen selected from fluoro, chloro, bromo, or iodo, C₁-C₈alkoxy, C₁-C₈haloalkoxy; C₅-C₁₈arylalkoxy; C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈aryl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl, alkylamino, —COOR_(a), —C(O)R_(b), —C(S)R_(a), —C(O)NR_(a)R_(b), —C(S)NR_(a)R_(b), —NR^(a)C(O)NR_(b)R_(c), NR_(a)C(S)NR_(b)R_(c), —N(R_(a))SOR_(b), —N(R_(a))SO₂R_(b), —NR_(a)C(O)OR_(b), —NR_(a)R_(b), —NR_(a)C(O)R_(b)—, NR_(a)C(S)R_(b)—, —SONR_(a)R_(b)—, —SO₂NR_(a)R_(b)—, —OR_(a), —OR_(a)C(O)OR_(b)—, —OC(O)NR_(a)R_(b), OC(O)R_(a), —OC(O)NR_(a)R_(b)—, —R_(a)NR_(b)R_(c), —R_(a)OR_(b)—, —SR_(a), —SOR_(a) or —SO₂R_(a), wherein R_(a), R_(b) and R^(c) are independently selected from hydrogen, C₁-C₈ alkyl, C₃-C₈cycloalkyl, C₅-C₁₈ aryl, C₅-C₁₈ arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl and C₂-C₁₈hetroarylalkyl; R₄ is selected from hydrogen, C₁-C₈alkyl, C₂-C₈alkynyl, C₃-C₈cycloalkyl, C₃-C₈cyloalkenyl, C₃-C₈cycloalkylalkyl, C₅-C₁₈ aryl, C₅-C₁₈ arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heterocyclylalkyl, C₂-C₁₈heteroaryl, C₂-C₁₈heteroarylalkyl or C₁-C₈haloalkyl, wherein alkyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano, amide, sulfonamide and carbamate, wherein the heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅, wherein R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₅-C₁₈aryl, C₂-C₁₈heteroaryl, C₃-C₈cycloalkyl or C₁-C₈alkyl; wherein R₅ and R₆ are optionally substituted with one or more substituents selected from fluorine, chlorine, bromine, iodine, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈alkyl, C₁-C₈haloalkylalkoxy, C₁-C₈haloalkoxy; C₅-C₁₈ arylalkoxy; C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈aryl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl, alkylamino, —COOR^(a), —C(O)R^(b), —C(S)R^(a), —C(O)NR^(a)R^(b), —C(S)NR^(a)R^(b), —NR^(a)C(O)NR^(b)R^(c), NR^(a)C(S)NR^(b)R^(c), —N(R^(a))SOR^(b), —N(R^(a))SO₂R^(b), —NR^(a)C(O)OR^(b), —NR^(a)R^(b), —NR^(a)C(O)R^(b)—, NR^(a)C(S)R^(b)—, —SONR^(a)R^(b)—, —SO₂NR^(a)R^(b)—, —OR^(a), —OR^(a)C(O)OR^(b)—, —OC(O)NR^(a)R^(b), OC(O)R^(a), —OC(O)NR^(a)R^(b)—, —R^(a)NR^(b)R^(c), —R^(a)OR^(b)—, —SR^(a), —SOR^(a) or —SO₂R^(a), wherein R^(a), R^(b) and R^(c) are independently selected from hydrogen, or optionally substituted groups selected from alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroarylorhetroarylalkyl.

According to another embodiment, the present disclosure relates to the compound of Formula (1) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, ---- is a single bond or a double bond; X is selected from —O— or —N—; n is 0-1; R₁ is selected from hydrogen, methyl, ethyl, n-propyl, ispopropyl, n-butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl, octyl, cyclopropyl, cyclobutyl, cyclopentylorcyclohexyl; R₂ and R₃ are independently selected from hydrogen, fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, alkyl, haloalkyl group such as trifluoromethyl, tribromomethyl, trichloromethyl and the like; alkoxy, haloalkoxy such as —OCH₂Cl and the like; arylalkoxy such as benzyloxy, phenylethoxy and the like; cycloalkyl, cycloalkyloxy, aryl, heterocyclyl, heteroaryl, alkylamino, —COOR_(a), —C(O)R_(b), —C(S)R_(a), —C(O)NR_(a)R_(b), —C(S)NR_(a)R_(b), —NR^(a)C(O)NR_(b)R_(c), NR_(a)C(S)NR_(b)R_(c), —N(R_(a))SOR_(b), —N(R_(a))SO₂R_(b), —NR_(a)C(O)OR_(b), —NR_(a)R_(b), —NR_(a)C(O)R_(b)—, NR_(a)C(S)R_(b)—, —SONR_(a)R_(b)—, —SO₂NR_(a)R_(b)—, —OR_(a), —OR_(a)C(O)OR_(b)—, —OC(O)NR_(a)R_(b), OC(O)R_(a), —OC(O)NR_(a)R_(b)—, —R_(a)NR_(b)R_(c), —R_(a)OR_(b)—, —SR_(a), —SOR_(a) or —SO₂R_(a), wherein R_(a), R_(b) and R_(c) are independently selected from hydrogen, alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl and hetroarylalkyl. R₄ is selected from hydrogen and a substituted or unsubstituted aryl comprising of phenyl, naphthyl, biphenyl and indanyl; heteroaryl comprising of pyridinyl, pyridazinyl, pyrimidyl, triazinyl, pyrrolyl, indolyl, pyrazolyl, imidazolyl, pyrazinyl, pyrimidinyl, tetrazolyl, furyl, thienyl, thiazolyl, isoxazolyl, oxazolyl and quinolinyl; cycloalkyl group comprising of cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cyclooctyl; an alkyl group comprising of methyl, ethyl, n-propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl and octyl; haloalkyl group comprising of trichloromethyl, trifluoromethyl, difluoromethyl, trifluoroethyl, trichloroethyl, monofluoromethyl or monochloromethyl; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅, or —NHSO₂R₅, wherein R₅ and R₆ are selected from hydrogen or substituted or unsubstituted aryl comprising phenyl, naphthyl, biphenyl and indanyl: heteroaryl comprising of pyridinyl, pyridazinyl, pyrimidyl, triazinyl, pyrrolyl, indolyl, pyrazolyl, imidazolyl, pyrazinyl, pyrimidinyl, tetrazolyl, furyl, thienyl, thiazolyl, isoxazolyl, oxazolyl and quinolinyl; cycloalkyl group comprising of cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cyclooctyl; an alkyl group comprising of methyl, ethyl, n-propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl and octyl; R₅ and R₆ are optionally substituted with one or more selected from but not limited to halogens such as fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, alkyl, haloalkyl group such as trifluoromethyl, tribromomethyl, trichloromethyl and the like; alkoxy, haloalkoxy such as —OCH₂Cl and the like; arylalkoxy such as benzyloxy, phenylethoxy and the like; cycloalkyl, cycloalkyloxy, aryl, heterocyclyl, heteroaryl, alkylamino, —COOR^(a), —C(O)R^(b), —C(S)R^(a), —C(O)NR^(a)R^(b), —C(S)NR^(a)R^(b), —NR^(a)C(O)NR^(b)R^(c), NR^(a)C(S)NR^(b)R^(c), —N(R^(a))SOR^(b), —N(R^(a))SO₂R^(b), —NR^(a)C(O)OR^(b), —NR^(a)R^(b), —NR^(a)C(O)R^(b)—, NR^(a)C(S)R^(b)—, —SONR^(a)R^(b)—, —SO₂NR^(a)R^(b)—, —OR^(a), —OR^(a)C(O)OR^(b)—, —OC(O)NR^(a)R^(b), OC(O)R^(a), —OC(O)NR^(a)R^(b)—, —R^(a)NR^(b)R^(c), —R^(a)OR^(b)—, —SR^(a), —SOR^(a) or —SO₂R^(a), wherein R^(a), R^(b) and R^(c) are independently selected from hydrogen, or optionally substituted groups selected from alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroarylorhetroarylalkyl.

According to an embodiment, the present disclosure relates to the compound of Formula (1) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, ---- is a single bond; X is —O—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈cycloalkyl; R₂ is hydrogen; R₃ is selected from halogen, C₁-C₈ alkyl, C₁-C₈haloalkyl substituted up to 3 halogen selected from fluoro, chloro, bromo, oriodo, C₁-C₈alkoxy, C₁-C₈haloalkoxy; C₅-C₁₈arylalkoxy; C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈heterocyclyl or C₂-C₁₈heteroaryl; R₄ is selected from hydrogen, C₁-C₈ alkyl, C₃-C₈cycloalkyl, C₃-C₈cyloalkenyl, C₃-C₈cycloalkylalkyl, C₅-C₁₈ aryl, C₅-C₁₈arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heterocyclylalkyl, C₂-C₁₈heteroaryl, C₂-C₁₈ heteroarylalkyl or C₁-C₈haloalkyl, wherein alkyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano, amide, sulfonamide and carbamate; wherein the heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from the group consisting of hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅, wherein R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₅-C₁₈ aryl, C₂-C₁₈heteroaryl, C₃-C₈cycloalkyl or C₁-C₈ alkyl; wherein R₅ and R₆ are optionally substituted with one or more substituents selected fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C₁-C₈haloalkylalkoxy, C₁-C₈haloalkoxy; C₅-C₁₈arylalkoxy; C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₆-C₁₈ aryl, C₂-C₁₈heterocyclyl or C₂-C₁₈heteroaryl.

According to an embodiment, the present disclosure relates to the compound of Formula (1) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, ---- is a single bond or a double bond; X is selected from —O— or —N—; n is 0-1; R₁ is selected from C₁-C₂ alkyl; R₂ and R₃ are independently selected from hydrogen, halogen, C₁-C₈ haloalkyl, C₁-C₈ alkoxy, and C₁-C₈ haloalkoxy; R₄ is selected from hydrogen, C₁-C₈alkyl, C₂-C₈alkynyl, C₃-C₈cycloalkyl, C₃-C₈cycloalkylalkyl, C₅-C₁₈aryl, C₂-C₁₈heteroaryl, or C₁-C₈haloalkyl, wherein alkyl, cycloalkyl, cycloalkylalkyl, aryl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, and cyano, wherein the heteroaryl contains up to three heteroatoms selected from 0 or N; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, — or NHCOR₅, wherein R₅ and R₆ are independently selected from hydrogen, C₅-C₁₈aryl, or C₁-C₈alkyl; wherein R₅ and R₆ are optionally substituted with one or more substituents selected from fluorine, chlorine, bromine, iodine, hydroxy, and cyano.

According to an embodiment, the present disclosure relates to the compound of Formula (1) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, is a single bond or a double bond; X is selected from —O— or —N—; n is 0-1; R₁ is selected from methyl and isopropyl; R₂ is hydrogen; R₃ is selected from, halogen, C₁-C₂ haloalkyl, C₁-C₂ alkoxy, and C₁-C₂ haloalkoxy; wherein haloalkyl and haloalkoxy are substituted with one or more substituents selected from fluorine and chlorine; R₄ is selected from hydrogen, C₁-C₂alkyl, C₃-C₅cycloalkyl, C₃-C₅cycloalkylalkyl, C₅-C₆ aryl, C₅-C₆heteroaryl, or C₁-C₂haloalkyl, wherein alkyl, cycloalkylalkyl, aryl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, cyano amide, sulfonamide and carbamate, wherein the heteroaryl contains one heteroatom as N; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, — or NHCOR₅, wherein R₅ and R₆ are independently selected from hydrogen, C₆ aryl, or C₁-C₃alkyl; wherein C₆ aryl is substituted with hydroxyl.

According to another embodiment, the present disclosure relates to the compound of Formula (1) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, ---- is a single bond; X is —O—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈cycloalkyl; R₂ is hydrogen; R₃ is selected from halogen, C₁-C₈ alkyl, C₁-C₈haloalkyl substituted up to 3 halogen selected from fluoro, chloro, bromo, oriodo, C₁-C₈alkoxy, C₁-C₈haloalkoxy; C₅-C₁₈arylalkoxy; C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈heterocyclyl or C₂-C₁₈heteroaryl; R₄ is selected from hydrogen, C₁-C₈ alkyl, C₃-C₈cycloalkyl, C₅-C₁₈ aryl, C₅-C₁₈arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl, C₂-C₁₈heteroarylalkyl or C₁-C₈haloalkyl, wherein alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano; wherein the heterocyclyl, heteroaryl and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from the group consisting of hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅, R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₅-C₁₈ aryl, C₂-C₁₈heteroaryl, C₃-C₈cycloalkyl or C₁-C₈ alkyl; wherein R₅ and R₆ are optionally substituted with one or more substituents selected from fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C₁-C₈haloalkylalkoxy, C₁-C₈haloalkoxy; C₅-C₁₈arylalkoxy; C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₆-C₁₈ aryl, C₂-C₁₈heterocyclyl or C₂-C₁₈heteroaryl.

According to an embodiment, the present disclosure relates to the compound of Formula (1) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, ---- is a double bond; X is —N—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈ cycloalkyl; R₂ is hydrogen; R₃ is selected from halogen, C₁-C₈ alkyl, C₁-C₈haloalkyl substituted up to three halogen selected from fluoro, chloro, bromo, or iodo, C₁-C₈alkoxy, C₁-C₈haloalkoxy; C₅-C₁₈arylalkoxy; C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈heterocyclyl or C₂-C₁₈heteroaryl; R₄ is selected from hydrogen, C₁-C₈ alkyl, C₃-C₈cycloalkyl, C₃-C₈cyloalkenyl, C₃-C₈ cycloalkylalkyl, C₅-C₁₈ aryl, C₅-C₁₈arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heterocyclylalkyl, C₂-C₁₈heteroaryl, C₂-C₁₈heteroaryl alkyl or C₁-C₈haloalkyl; wherein alkyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano; wherein the heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from the group consisting of hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅, R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₅-C₁₈ aryl, C₂-C₁₈heteroaryl, C₃-C₈cycloalkyl or C₁-C₈ alkyl; wherein R₅ and R₆ are optionally substituted with, the one or more substituents are selected from but not limited to halogens such as fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C1-C8 haloalkylalkoxy, C₁-C₈ haloalkoxy; C₅-C₁₈ arylalkoxy; C₃-C₈ cycloalkyl, C₃-C₈ cycloalkyloxy, C₆-C₁₈ aryl, C₂-C₁₈ heterocyclyl or C₂-C₁₈ heteroaryl.

According to an embodiment, the present disclosure relates to the compound of Formula (1) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, ---- is a double bond; X is —N—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈ cycloalkyl; R² is hydrogen; R³ is selected from halogen, C₁-C₈ alkyl, C₁-C₈ haloalkyl substituted up to 3 halogen selected from fluoro, chloro, bromo, iodo, C₁-C₈ alkoxy, C₁-C₈ haloalkoxy; C₅-C₁₈ arylalkoxy; C₃-C₈ cycloalkyl, C₃-C₈ cycloalkyloxy, C₆-C₁₈ aryl, C₂-C₁₈ heterocyclyl or C₅-C₁₈ heteroaryl; R₄ is selected from hydrogen, C₁-C₈ alkyl, C₃-C₈ cycloalkyl, C₅-C₁₈ aryl, C₅-C₁₈ arylalkyl, C₂-C₁₈ heterocyclyl, C₂-C₁₈ heteroaryl, C₂-C₁₈ heteroarylalkyl or C₁-C₈ haloalkyl; wherein alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano; wherein the heterocyclyl, heteroaryl and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from the group consisting of hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, or —NHCOR₅ wherein; R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₆-C₁₈ aryl, C₂-C₁₈ heteroaryl, C₃-C₈ cycloalkyl or C₁-C₈ alkyl wherein; R₅ and R₆ are optionally substituted, with one or more substituents selected from fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C₁-C₈ haloalkylalkoxy, C₁-C₈ haloalkoxy; C₅-C₁₈ arylalkoxy; C₃-C₈ cycloalkyl, C₃-C₈ cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈ heterocyclyl or C₂-C₁₈ heteroaryl.

According to another embodiment, the present disclosure relates to the compound of the Formula (Ia),

or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein X is selected from —O— or —N—; n is 0-1; R1 is selected from C1-C8 alkyl or C3-C8 cycloalkyl; R2 and R3 are independently selected from hydrogen, fluoro, chloro, bromo, iodo, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO2-, amino, hydrazino, formyl, C1-C8 alkyl, C1-C8haloalkyl independently substituted with up to 3 halogen selected from fluoro, chloro, bromo, or iodo, C1-C8alkoxy, C1-C8haloalkoxy; C5-C18arylalkoxy; C3-C8cycloalkyl, C3-C8cycloalkyloxy, C5-C18 aryl, C2-C18heterocyclyl, C2-C18heteroaryl, alkylamino, —COORa, —C(O)Rb, —C(S)Ra, —C(O)NRaRb, —C(S)NRaRb, —NRaC(O)NRbRc, NRaC(S)NRbRc, —N(Ra)SORb, —N(Ra)SO2Rb, —NRaC(O)ORb, —NRaRb, —NRaC(O)Rb—, NRaC(S)Rb—, —SONRaRb—, —SO2NRaRb—, —ORa, —ORaC(O)ORb—, —OC(O)NRaRb, OC(O)Ra, —OC(O)NRaRb—, —RaNRbRc, —RaORb—, —SRa, —SORa or —SO2Ra, wherein Ra, Rb and Rc are independently selected from hydrogen, C1-C8 alkyl, C3-C8cycloalkyl, C5-C18aryl, C5-C18arylalkyl, C2-C18heterocyclyl, C2-C18heteroaryl and C2-C18hetroarylalkyl. R4 is selected from hydrogen, C1-C8 alkyl, C3-C8 cycloalkyl, C6-C18aryl or C2-C18heteroaryl; wherein alkyl, cycloalkyl, aryl, and heteroaryl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano; wherein the heteroaryl contains up to three heteroatoms selected from O, N or S; Z is selected from —CH2OR5, —COOR5, —CONR5R6, or —CONHR7; R5 and R6 are independently selected from hydrogen, hydroxyl, C5-C18 aryl, C2-C18heteroaryl, C3-C8cycloalkyl or C1-C8 alkyl; wherein R5 and R6 are optionally substituted, with one or more substituents selected from fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO2-, amino, hydrazino, formyl, C1-C8 alkyl, C1-C8 haloalkylalkoxy, C1-C8 haloalkoxy; C5-C18 arylalkoxy; C3-C8 cycloalkyl, C3-C8 cycloalkyloxy, C5-C18 aryl, C2-C18 heterocyclyl, C2-C18 heteroaryl, alkylamino, —COORa, —C(O)Rb, —C(S)Ra, —C(O)NRaRb, —C(S)NRaRb, —NRaC(O)NRbRc, NRaC(S)NRbRc, —N(Ra)SORb, —N(Ra)SO2Rb, —NRaC(O)ORb, —NRaRb, —NRaC(O)Rb—, NRaC(S)Rb—, —SONRaRb—, —SO2NRaRb—, —ORa, —ORaC(O)ORb—, —OC(O)NRaRb, OC(O)Ra, —OC(O)NRaRb—, —RaNRbRc, —RaORb—, —SRa, —SORa or —SO2Ra, wherein Ra, Rb and Rc are independently selected from hydrogen, or optionally substituted groups selected from alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroarylorhetroarylalkyl. R7 represents —OR8, ortho substituted aniline, amino aryl and amino heteroaryl, which may be further substituted, wherein R8 is selected from hydrogen, optionally substituted groups selected from alkyl, aryl, heterocyclyl and —COR9, wherein R9 is selected from alkyl, aryl, heteroaryl, cycloalkylorheterocyclyl.

According to an embodiment, the present disclosure relates to a compound of Formula Ia

their analogs, tautomeric forms, stereoisomers, polymorphs, solvates, intermediates, pharmaceutically acceptable salts, pharmaceutical compositions, metabolites and prodrugs thereof which can be used for the treatment of proliferative diseases; wherein, R₁ represents substituted or unsubstituted alkyl or cycloalkyl; X represents —O— or —N—; R₄ represent hydrogen or substituted or unsubstituted aryl, heteroaryl, cycloalkyl and alkyl; Z represents —CH₂OR₅, —COOR₅ or —CONR₅R₆, —CONHR₇, R₅ and R₆ represent hydrogen or substituted or unsubstituted aryl, heteroaryl, cycloalkyl and alkyl; R₇ represents —OR₈, ortho substituted aniline, amino aryl and amino heteroaryl, which may be further substituted, wherein R₈ represents hydrogen, optionally substituted groups selected from alkyl, aryl, heterocyclyl and —COR₉, wherein R₉ represents optionally substituted groups selected from alkyl, aryl, heteroaryl, cycloalkyl and heterocyclyl; n represents an integer from 0-6; R₂ and R₃ represent substitution which are independently selected from hydrogen, be one or more are selected from but not limited to halogens such as fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, alkyl, haloalkyl group such as trifluoromethyl, tribromomethyl, trichloromethyl and the like; alkoxy, haloalkoxy such as —OCH₂C1 and the like; arylalkoxy such as benzyloxy, phenylethoxy and the like; cycloalkyl, cycloalkyloxy, aryl, heterocyclyl, heteroaryl, alkylamino, —COOR_(a), —C(O)R_(b), —C(S)R_(a), —C(O)NR^(a)R_(b), —C(S)NR_(a)R_(b), —NR_(a)C(O)NR_(b)R_(c), NR_(a)C(S)NR_(b)R_(c), —N(R_(a))SOR_(b), —N(R_(a))SO₂R_(b), —NR_(a)C(O)OR_(b), —NR_(a)R_(b), —NR_(a)C(O)R_(b)—, NR_(a)C(S)R_(b)—, —SONR_(a)R_(b)—, —SO₂NR_(a)R_(b)—, —OR_(a), —OR_(a)C(O)OR_(b)—, —OC(O)NR_(a)R_(b), OC(O)R_(a), —OC(O)NR_(a)R_(b)—, —R_(a)NR_(b)R_(c), —R_(a)OR_(b)—, —SR_(a), —SOR_(a) and —SO₂R_(a), wherein R_(a), R_(b) and R_(c) in each of the above groups can be hydrogen, optionally substituted groups selected from alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl and hetroarylalkyl. The substituents are optionally further substituted by one or more substituents as defined above.

According to an embodiment, the present disclosure relates to a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, R₁ is methyl or iso-propyl.

According to an embodiment, the present disclosure relates to a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, R₂ is hydrogen.

According to an embodiment, the present disclosure relates to a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, R₃ is selected from C₁-C₈alkoxy, C₁-C₈haloalkyl, halogen or C₁-C₈ haloalkoxy.

According to an embodiment, the present disclosure relates to a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, R₃ is selected from methoxy, trifluoromethyl, fluorine, or difluoromethoxy.

According to an embodiment, the present disclosure relates to a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, R₄ is selected from C1 alkyl, C₃cycloalkyl, C₆ cycloalkyl C₃cycloalkylalkyl, C₆ aryl, C₅heteroaryl, or C₁haloalkyl, wherein alkyl, cycloalkylalkyl, aryl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from fluorine, chlorine, methyl and cyano, wherein the heteroaryl contains one heteroatom as N.

According to an embodiment, the present disclosure relates to a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, X is —N—.

According to an embodiment, the present disclosure relates to a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, X is —O—.

According to an embodiment, the present disclosure relates to a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, wherein, n is 1.

According to an embodiment, the present disclosure relates to a compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, which is selected from a group consisting of:

-   1)     ±Ethyl-2-(-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   1A) Ethyl     2-((5S,7R)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   1B) Ethyl     2-((5S,7S)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   1C) Ethyl     2-((5R,7S)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   1D) Ethyl     2-((5R,7R)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   2)     ±Ethyl-2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   3)     ±Ethyl-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   4)     ±Ethyl-2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   5)     ±Ethyl-2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   6)     ±Ethyl-2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate -   7)     ±7-(4-chlorophenyl)-5-(2-hydroxyethyl)-9-methoxy-2-methyl-5,7-dihydrobenzo[5,6]oxepino[4,3-c]pyridin-3(2H)-one -   8)     ±2-(-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   8A)     ±2-((5S,7R)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   8B)     ±2-((5S,7S)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   8C)     2-((5S,7R)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   8D)     2-((5S,7S)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   8E)     2-((5R,7S)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   8F)     2-((5R,7R)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   9)     ±2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   9A)     ±2-((5S,7R)-7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   9B)     ±2-((5S,7S)-7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   10)     ±2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   10A)     ±2-((5S,7R)-7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   10B)     ±2-((5S,7S)-7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   11)     ±2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   11A)     ±2-((5S,7S)-9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   11B)     ±2-((5S,7R)-9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   12)     ±2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   12A)     ±2-((5S,7R)-9-fluoro-2-methyl-3-oxo-7-phenyl-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   12B)     ±2-((5S,7S)-9-fluoro-2-methyl-3-oxo-7-phenyl-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   13)     ±2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   13A)     ±2-((5S,7R)-2-methyl-3-oxo-7-phenyl-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   13B)     ±2-((5S,7S)-2-methyl-3-oxo-7-phenyl-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide -   14)     ±Ethyl-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   15) ±Ethyl     2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   16)     ±Ethyl-2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   17)     ±Ethyl-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   18)     ±Ethyl-2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   19)     ±Ethyl-2-(9-methoxy-2,7-dimethyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   20)     ±Ethyl-2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   21)     ±Ethyl-2-(7-(4-chlorophenyl)-2-isopropyl-9-methoxy-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   22)     ±Ethyl-2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   23)     ±Ethyl-2-(7-(2,6-difluorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   24)     ±Ethyl-2-(7-(4-chloro-2-methylphenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate -   25)     ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   25A)     (S)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide. -   25B)     (R)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide. -   26)     ±2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   26A)     (S)-2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   26B)     (R)-2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   27)     ±2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   27A)     (S)-2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   27B)     (R)-2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   28)     ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetamide -   29)     ±2-(7-(4-chlorophenyl)-9-hydroxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   30)     ±2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   30A)     (S)-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   30B)     (R)-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   31)     ±2-(7-(4-chlorophenyl)-9-(difluoromethoxy)-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   32)     ±2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   32A)     (S)-2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   32B)     (R)-2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   33)     ±2-(7-(4-cyanophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   34)     ±2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   35)     ±2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   36)     ±2-(7-(4-chlorophenyl)-2-isopropyl-9-methoxy-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   37)     ±2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   38)     ±2-(7-(2,6-difluorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   39)     ±2-(7-(4-chloro,2-methylphenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide -   40)     ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-(4-hydroxyphenyl)acetamide -   40A)     (S)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-(4-hydroxyphenyl)acetamide -   40B)     (R)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-(4-hydroxyphenyl)acetamide -   41)     ±7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one -   41A)     (S)-7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one -   41B)     (R)-7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one -   42)     ±7-(4-chlorophenyl)-9-methoxy-2-methyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one -   43)     ±2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetic     acid -   44)     ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetic     acid -   45)     ±tert-butyl((7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)methyl)carbamate -   46)     ±N-((7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)methyl)acetamide

According to an embodiment, the present disclosure relates to a process of preparation of compound of Formula I or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof.

According to an embodiment, the present disclosure relates to a pharmaceutical composition including a compound of Formula (I), or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, and at least one pharmaceutically acceptable carrier, diluent, or excipient.

According to an embodiment, the present disclosure relates to the use of a compound of Formula (I) or (Ia) and pharmaceutical composition including a compound of Formula (I) or (Ia), or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, in the manufacture of a medicament for the treatment and/or prevention of diseases and/or disorders in which aberrant, abnormal or deregulated activity of BET family of bromodomain containing proteins; in particular BRD2, BRD3, BRD4 and BRDT proteins.

According to an embodiment, the present disclosure relates to the use of a compound of Formula (I) or (Ia) and pharmaceutical composition including a compound of Formula (I) or (Ia) or its stereoisomers, pharmaceutically acceptable salts, complexes, hydrates, solvates, tautomers, polymorphs, racemic mixtures, optically active forms and pharmaceutically active derivative thereof, in the manufacture of a medicament for the production of an anti-cancer effect in a warm-blooded animal such as man.

According to an embodiment, the present disclosure relates to a method for treating a variety of diseases or conditions related to systemic or tissue inflammation, inflammatory responses to infection or hypoxia, cellular activation and proliferation, lipid metabolism, fibrosis and in the prevention and treatment of viral infections.

According to an embodiment, the present disclosure relates to a method for treating cancer in patients including administration of a therapeutically effective amount of a compound of Formula (I).

According to an embodiment, the present disclosure relates to a method for treating proliferative conditions or cancer, comprising administering to a subject suffering from proliferative conditions or cancer, a therapeutically effective amount of a compound of Formula (I), in the presence or absence of other clinically relevant cytotoxic agents or non-cytotoxic agents to a mammal in need thereof.

According to an embodiment, the present disclosure relates to a method for treating a disorder caused by, associated with or accompanied by disruptions of cell proliferation and/or angiogenesis and the subsequent metastasis including administration of a therapeutically effective amount of a compound of Formula (I).

According to an embodiment, the present disclosure relates to a method for treating cancer in patient including administration of effective amount of compounds of formula (I). The cancer can be either a hematologic malignancy or solid tumor. Hematological malignancy is selected from the group consisting of B-cell lymphoma, T-cell lymphoma and leukemia. In the case of solid tumors, the tumors are selected from the group consisting of breast cancer, lung cancer, ovarian cancer, prostate cancer, head cancer, neck cancer, renal cancer, gastric cancer, colon cancer, pancreatic cancer and brain cancer.

According to an embodiment, the present disclosure relates to a method for treating and/or preventing a neurodegenerative disease or disorder comprising administering, to a patient in need of treatment, a therapeutically effectively amount of a composition comprising a compound of Formula I and a pharmaceutically acceptable carrier.

In one aspect of this embodiment, the invention provides a compound of Formula I for use in treating and/or preventing a neurodegenerative disorder or condition. In a related aspect, the invention provides for the use of a compound of Formula I for the manufacture of a medicament for treating and/or preventing a neurodegenerative disorder or condition.

According to an embodiment, the present disclosure relates to the compounds of Formula (I) useful for treating proliferative diseases. A proliferative disease includes, for example, a tumor disease and/or metastates.

According to an embodiment, the compounds of the present disclosure are useful for treating a proliferative disease that is refractory to the treatment with other chemotherapeutics; or a tumor that is refractory to treatment with other therapeutics due to multidrug resistance.

According to an embodiment, the present disclosure relates to a method of treatment of cancer, said method comprising administering a combination of the compound or the pharmaceutical composition with other clinically relevant immune modulators agents to a mammal in need of thereof.

According to an embodiment, the compounds of the present invention are able to slow tumor growth, stop tumor growth or bring about the regression of tumors and to prevent the formation of tumor metastasis (including micrometastatis) and the growth of metastates (including micrometastatis). In addition they can be used in epidermal hyper proliferation.

The compound of formula I of the present invention can be used as a prophylactic or therapeutic agent for cancer. Examples of the cancer not restricted include breast cancer, prostate cancer, pancreatic cancer, gastric cancer, lung cancer, colon cancer, rectal cancer, esophagus cancer, duodenal cancer, tongue cancer, pharyngeal cancer, brain tumor, neurinoma, non-small cell lung cancer, small cell lung cancer, liver cancer, kidney cancer, bile duct cancer, uterine body cancer, cervical cancer, ovarian cancer, urinary bladder, skin cancer, hemangioma, malignant lymphoma, malignant melanoma, thyroid cancer, bone tumor, vascular fibroma, retinoblastoma, penile cancer, pediatric solid cancer, lymphoma, myeloma and leukemia (including, for example acute myelogenous leukemia (AML), chronic myelogenous leukemia (CML), chronic neutrophilic leukemia, chronic eosinophilic leukemia, chronic lymphocytic leukemia (CLL), acute lymphoblastic leukemia (ALL) or hariy cell leukemia).

The compound of formula I of the present invention can be used as a prophylactic or therapeutic agent for various chronic autoimmune and inflammatory conditions such as rheumatoid arthritis, osteoarthritis, acute gout, psoriasis, systemic lupus erythematosus, multiple sclerosis, inflammatory bowel disease (Crohn's disease and Ulcerative colitis), asthma, chronic obstructive airways disease, pneumonitis, myocarditis, pericarditis, myositis, eczema, dermatitis, alopecia, vitiligo, bullous skin diseases, nephritis, vasculitis, atherosclerosis, Alzheimer's disease, depression, retinitis, uveitis, scleritis, hepatitis, pancreatitis, primary biliary cirrhosis, sclerosing cholangitis, Addison's disease, hypophysitis, thyroiditis, type I diabetes and acute rejection of transplanted organs.

In one embodiment, the invention provides a method of inhibiting bromodomain activity comprising administering, to a patient in need of treatment, an amount of a composition comprising a compound of Formula I and a pharmaceutically acceptable carrier sufficient to inhibit bromodomain activity.

In one aspect of this embodiment, the invention provides a compound of Formula I for use in inhibiting bromodomain. In a related aspect, the invention provides for the use of a compound of Formula I for the manufacture of a medicament for inhibiting bromodomain.

In one embodiment, the invention provides a method of treating and/or preventing a neurodegenerative disease or disorder comprising administering, to a patient in need of treatment, a therapeutically effectively amount of a composition comprising a compound of Formula I and a pharmaceutically acceptable carrier. In one aspect of this embodiment, the invention provides a compound of Formula I for use in treating and/or preventing a neurodegenerative disorder or condition. In a related aspect, the invention provides for the use of a compound of Formula I for the manufacture of a medicament for treating and/or preventing a neurodegenerative disorder or condition.

In another aspect, the compound may be administered in combination therapy by combining the compound of formula (I) with one or more separate agents, not limited to targets such as DNA methyltransferase, heat shock proteins (e.g. HSP90) kinases and other matrix metalloproteinases.

“Combination therapy” includes the administration of the subject compounds in further combination with other biologically active ingredients (such as vinblastine, afatinib, nilotinib, vemarafinib, aflibercept, axitinib, dasatinib, sorafenib, bosutinib, crizotinib, but are not limited to, different antineoplastic agent) and non-drug therapies (such as, but are not limited to, surgery or radiation treatment). The compounds described herein can be used in combination with other pharmaceutically active compounds, preferably, which will enhance the effect of the compounds of the invention. The compounds can be administered simultaneously or sequentially to the other drug therapy.

In another aspect, the subject compounds may be combined with the antineoplastic agents (e.g. small molecules, monoclonal antibodies, antisense RNA and fusion proteins) that inhibit one or more biological targets. Such combination may enhance therapeutic efficacy over the efficacy achieved by any of the agents alone and may prevent or delay the appearance of resistant variants.

In another aspect, the subject compounds may be combined with immunoncology drugs not restricting to PDL-1 inhibitor, IDO, TDO, CTLA4 or any other drugs which is involved in the immune modulation.

A term once described, the same meaning applies for it, throughout the patent.

Scheme:

According to an embodiment, the present disclosure relates to a process as shown in the following scheme-1, for the preparation of compounds of the Formula (I), wherein all the groups are as defined earlier.

The said process for the preparation of the compounds of formula (I) comprises of the following:

The compound 1 was converted to compound 2 under standard conditions either using malonic acid or witting reagent. Compound 2 was treated with intermediate 3 in the presence of Pd catalyst C—C bond formation under standard conditions to obtained 4.

Compound 4 under standard carbonyl reductions using sodium borohydride or sodium cyanoborohydride or like to give the corresponding alcohol 5. Intramolecular cyclization of 5 using bases such as inorganic or organic bases gives 6. Further exploration of 6 gives compound of formula 1. Treating compound 4 with ammonium formate or ammonium acetate or the like in polar protic solvent such as methanol, ethanol or the like gives 7. Further exploration of 7 gives compound of formula 1. Compound 1 can be converted to compound 8 by treating corresponding sulfoximine. Compound 8 when treated with appropriately substituted Grignard reagent in the presence of suitable solvents such as tetrahydrofuran or dioxane or diethylether gave compound 9. Compound 9 on treatment with acids such as HCl, H₂SO₄ and the like gave compound of formula 1. Where in R¹, R², R³, R⁴ and Z are described above. The examples given below are provided by the way of illustration only and therefore should not be construed to limit the scope of the invention.

EXAMPLES

The following examples provide the details about the synthesis, activities, and applications of the compounds of the present disclosure. It should be understood the following is representative only, and that the invention is not limited by the details set forth in these examples.

Example 1 ±Ethyl 2-(-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

Step A: methyl 5-bromo-2-oxo-1,2-dihydropyridine-4-carboxylate-II

To a stirred solution of Conc.H₂SO₄ (50 mL, 0.668 mol) in water (500 mL) was added methyl 2-amino-5-bromoisonicotinate (I, 50 g, 0.226 mol). The resulting clear brown solution was cooled to 0° C. To the mixture was added NaNO₂ (50 g, 0.668 mmol) in water (150 mL) drop wise using addition funnel at 0° C. Vigorous effervescence with evolution of N₂ gas was observed. The reaction mixture was warmed to room temperature. The reaction mixture was stirred for additional 30 min at room temperature. The solid was filtered, washed with water (3×150 mL) followed by n-hexane (2×100 mL) to yield as a yellow solid. (48.0 g, 93% yield). ¹H NMR (DMSO-d₆, 400 MHz), δ (ppm): 7.62 (s, 1H), 6.90 (s, 1H), 5.0 (br, 1H), 3.98 (s, 3H). MS (ESI): mass calcd. for C₇H₇BrN₂O₂, 232.01; m/z found, 234[M+2H]⁺.

Step B: methyl 5-bromo-1-methyl-2-oxo-1,2-dihydropyridine-4-carboxylate-III

To a stirred solution of methyl 5-bromo-2-oxo-1,2-dihydropyridine-4-carboxylate (II, 25.0 g, 0.107 mol) in acetonitrile (500 mL) was added cesium carbonate (42 g, 0.129 mol) at 5-10° C. To this mixture was added methyl iodide (7.4 mL, 0.118 mol). The reaction mixture was warmed to room temperature and stirred for 4 h. The reaction mixture was filtered and concentrated to get the product as a brown solid. (25 g, 95% yield), ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm): 8.18 (s, 1H), 6.70 (s, 1H), 3.83 (s, 3H), 3.42 (s, 3H). MS (ESI): mass calcd. for C₈H₈BrNO₃, 246.01; m/z found, 248[M+2H]⁺.

Step C: 5-bromo-4-(hydroxymethyl)-1-methylpyridin-2(1H)-one-IV

To the 5-bromo-4-(hydroxymethyl)-1-methylpyridin-2(1H)-one (III, 24.0 g, 0.096 mol) was added THF (250 mL), DME (250 mL) and NaBH₄ (10 g, 0.213 mol) at room temperature. The reaction mixture was heated to 75-80° C. To the reaction mixture was added slowly MeOH (250 mL) using additional funnel. The reaction mixture was stirred at 70-75° C. for 1 h. The reaction mixture was concentrated under reduced pressure. The concentrate was triturated with 50 mL of water and filtered to yield as a pale yellowish solid. (15.0 g, 71% yield), ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm): 7.98 (s, 1H), 6.44 (s, 1H), 5.56 (br, 1H), 4.29 (s, 2H), 3.38 (s, 3H). MS (ESI): mass calcd. for C₇H₈BrNO₂, 218.05; m/z found, 220 [M+2H]⁺.

Step D: 5-bromo-1-methyl-2-oxo-1,2-dihydropyridine-4-carbaldehyde-V

To the 5-bromo-4-(hydroxymethyl)-1-methylpyridin-2(1H)-one. (IV, 20.0 g, 0.091 mol) was added acetonitrile (2 L) and stirred at room temperature for 30 mins to get a slightly turbid mixture. To this mixture, Dess-martin-periodinane reagent (60 g, 0.137 mol) was added at room temperature. The resulting turbid milky suspension was stirred at room temperature for 3 h. To the reaction mixture was added saturated sodium bicarbonate aqueous solution (50 mL) and stirred for 15 min. The reaction mixture was filtered over celite bed. The celite bed was washed with 100 mL of acetonitrile. The acetonitrile organic layer was concentrated ⅓^(rd) portion to get a turbid mixture again. The turbid mixture was filtered over celite bed once again and washed with 100 mL of acetonitrile. The acetonitrile organic layer was concentrated to dryness. The residue was dissolved in 5% MeOH in DCM (250 mL) and washed with 50 mL of water. The organic layer was concentrated to get the title compound 5-bromo-1-methyl-2-oxo-1,2-dihydropyridine-4-carbaldehyde as a semi solid (12.3 g, 62% yield), ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm): 9.94 (s, 1H), 8.23 (s, 1H), 6.81 (s, 1H), 3.45 (s, 3H). MS (ESI): mass calcd. for C₇H₆BrNO₂, 216.03; m/z found, 218[M+2H]⁺.

Step E: (E)-ethyl 3-(5-bromo-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)acrylate-VI

To a suspension of NaH (2.6 g, 0.064 mol) in dry THF (100 mL) at 0° C. was added portion wise triethylphosphonoacetate (12 mL, 0.06 mol) under nitrogen atmosphere. The reaction mixture was stirred for 30 min at 0° C. to get a clear solution. To the mixture, 5-bromo-1-methyl-2-oxo-1,2-dihydropyridine-4-carbaldehyde (V, 10 g, 0.046 mol) in DMSO (50 mL) was added under inert atmosphere. The reaction mixture was warmed to room temperature and stirred for 1 h. The reaction mixture was quenched with aq. NH₄Cl solution (20 mL), extracted with EtOAc (100 mL x 2 times). The combined organic layer was washed with ice cold water 100 mL. The organic layer was dried over anhydrous Na₂SO₄, filtered, and concentrated to get a semi solid. This semi solid was washed with 2×50 mL of n-pentane to yield as a yellow solid. (9 g, 68% yield), ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm): 8.15 (s, 1H), 7.49-7.53 (d, J=16 Hz, 1H), 6.89 (s, 1H), 6.68-6.72 (d, J=16 Hz, 1H), 3.41 (s, 3H), 4.18-4.23 (q, J=7.2 Hz, 2H), 1.23-1.26 (t, J=6.8 Hz, 3H). MS (ESI): mass calcd. for C₁₁H₁₂BrNO₃, 286.12; m/z found, 288[M+2H]⁺.

Synthesis of Intermediate VII

Step J: 2-bromo-α-(4-chlorophenyl)-5-methoxy-benzenemethanol-VIIC

To a stirred solution of 2-bromo-5-methoxybenzaldehyde (VIIA, 25 g, 116 mmol) in dry tetrahydrofuran (350 mL) under N₂ atmosphere at 0° C., 4-chlorophenylmagnesium bromide 1.0 M solution in diethyl ether (140 mL, 140 mmol) was added drop wise. Then reaction mixture was left for stirring over 2 h. After the completion of reaction, reaction mixture was quenched by saturated ammonium chloride solution and diluted with ethyl acetate. Reaction mixture was filtered through celite bed. Organic layer was separated and washed with brine, dried over sodium sulphate, concentrated under reduced pressure. The Crude was washed with n-pentane to yield as a off white solid (38 g, 95% yield). MS (ESI): mass calcd for C₁₄H₁₂BrClO₂, 327.60; m/z found, 326[M−H]⁻.

Step I: (2-bromo-5-methoxyphenyl)(4-chlorophenyl)-Methanone-VIID

To a stirred solution of 2-bromo-α-(4-chlorophenyl)-5-methoxy-Benzenemethanol (VIIC, 20 g, 0.06 mol) in dry dichloromethane (350 mL), pyridinium chlorochromate (17 g, 0.078 mol) was added under N₂ atmosphere. The reaction mixture was stirred for 1.5 h. After the completion of reaction, mixture was filtered through silica gel (100-200 mesh) bed. Then dichloromethane layer was washed by saturated sodium bicarbonate solution, followed by brine, dried over sodium sulphate. Organic layer was concentrated and purified using silica gel column chromatography using 2-5% EtOAc/hexane as the eluent to yield as a white solid (13 g, 65% yield). MS (ESI): mass calcd for C₁₄H₁₀BrClO₂, 325.59; m/z found, 326[M+H]⁺.

Step K: (4-chlorophenyl)[5-methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]Methanone-VII

To a stirred solution of (2-bromo-5-methoxyphenyl)(4-chlorophenyl)-Methanone (VIID, 14.8 g, 0.045 mol) in dioxane (350 mL), potassium acetate (26.7 g, 0.27 mol) and Bis(pinacolato)diborane (18 g, 0.0726 mol) were added. The mixture was purged with nitrogen gas for 30 min. Then Pd(dppf)Cl₂ (2.2 g, 0.0027 mol) was added. The reaction mixture was refluxed at 95° C. for 2.5 h. After the completion of reaction, reaction mixture was filtered through celite bed. Then dioxane was completely evaporated. Crude was dissolved in ethyl acetate, washed with brine, dried over sodium sulphate, concentrated. The crude was purified by Biotage purifier, eluted in 1%-3% EA/Hexane to yield as a white solid (10 g, 59% yield). MS (ESI): mass calcd for C₂₀H₂₂BClO₄, 372.65; m/z found, 373[M+H]⁺.

Step F: (E)-ethyl 3-(5-(2-(4-chlorobenzoyl)-4-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)acrylate-VIII

To a stirred solution of (E)-ethyl 3-(5-bromo-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)acrylate (VI, 2.0 g, 6.99 mmol) in dimethoxy ethane/water (60:15 mL), (4-chlorophenyl)(5-methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2 yl)phenyl)methanone (VII, 3.38 g, 9.08 mmol), sodium carbonate (2.2 mL, 20.97 mmol) was added at room temperature and purged with nitrogen gas for 15 min, followed by Pd(PPh₃)₄(0.8 g, 0.699 mmol) was added under nitrogen atmosphere. The mixture was stirred for 28 h at 90° C. The reaction mixture was cooled to room temperature and concentrated the mixture under reduced pressure. The crude product was dissolved in ethyl acetate. The organic layer was washed with brine, dried over Na₂SO₄, concentrated under reduced pressure. The crude was purified by combiflash (Silica gel, 5-80% EtOAc/hexane) to give yellow solid (1.25 g, 40% yield). ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm): 9.13 (s, 1H), 8.07 (s, 1H), 7.63-7.61 (d, J=8.0 Hz, 2H), 7.52-7.50 (d, J=8.0 Hz, 2H), 4.47 (m, 1H), 4.31 (m, 1H), 4.05 (m, 3H), 3.78 (m, 1H), 3.02 (m, 1H), 2.74 (m, 1H), 2.31 (m, 1H), 1.77-1.68 (m, 1H), 1.35 (t, J=4 Hz, 2H), 1.13 (s, 2H), 0.99 (t, J=8 Hz, 2H). MS (ESI): mass calcd. for C₂₅H₂₂ClNO₅, 451.9; m/z found, 452.1[M+H]⁺.

Step G: (E)-ethyl 3-(5-(2-((4-chlorophenyl)(hydroxy)methyl)-4-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)acrylate-IX

To a stirred solution of (E)-ethyl 3-(5-(2-(4-chlorobenzoyl)-4-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)acrylate (1.25 g, 2.76 mmol) in methanol (30 mL), sodium borohydride (0.153 g, 4.14 mmol) was added at room temperature under nitrogen atmosphere. The reaction mixture was stirred for 1 h at room temperature. The reaction was monitored by TLC, after completion of the reaction; mixture was quenched with saturated ammonium chloride and concentrated under reduced pressure. The residue was partitioned with ethyl acetate and water. The organic layer was washed with brine, dried over Na₂SO₄, concentrated under reduced pressure to yield a yellow solid (1.25 g crude). MS (ESI): mass calcd. for C₂₅H₂₄ClNO₅, 453.91; m/z found, 454.1[M+H]⁺.

Step H: ±ethyl 2-((7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate—Example 1

To a stirred solution of (E)-ethyl 3-(5-(2-((4-chlorophenyl)(hydroxy)methyl)-4-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)acrylate (0.15 g, 0.33 mmol) in ethanol (10 mL), potassium carbonate (0.068 g, 0.495 mmol) was added at room temperature under nitrogen atmosphere. The mixture was stirred for 24 h at room temperature. After completion of the reaction, the mixture was quenched with water and concentrated under reduced pressure. The residue was partitioned with ethyl acetate and water. The organic layer was washed with brine, dried over Na₂SO₄, concentrated under reduced pressure. The crude was purified by HPLC using Inertsil ODS (250 mm×4.6 mm×5μ) column with 0.01% ammonia/water and acetonitrile as mobile phase to yield two diastereomers as white solid (0.05 g, 33.3% yield). MS (ESI): mass calcd. for C₂₅H₂₄ClNO₅, 453.91; m/z found, 454.2[M+H]⁺.

Preparative Chiral HPLC Method for the Separation of Diastereomers 1

Column: CHIRALPAK IA (250 mm×4.6 mm×5 μm)

Wavelength: 254 nm UV

Injection Volume: 25.0 μl/min 20 deg C.

Eluent: 80:20:0.1 MTBE:MeOH:DEA

Example 1A Ethyl-2-((5S,7R)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.8 (s, 1H), 7.38 (d, J=8.4 Hz, 1H), 7.25 (d, J=8.4 Hz, 2H), 7.08 (d, J=8.4 Hz, 2H), 7.03-7.00 (dd, J=14.0 Hz, J=2.0 Hz, 1H), 6.81 (bs, 1H), 6.35 (s, 1H), 5.95 (s, 1H), 4.88 (t, J=8.4 Hz, 1H), 4.09-4.04 (m, 2H). 3.75 (s, 3H), 3.4 (s, 3H), 2.80-2.78 (m, 2H), 1.16 (t, J=7.2 Hz, 3H). MS (ESI): mass calcd. for C₂₅H₂₄ClNO₅, 453.13; m/z found, 454.2[M+H]⁺.

Example 1B Ethyl-2-((5S,7S)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.98 (s, 1H), 7.45 (d, J=8.4 Hz, 3H), 7.31 (d, J=8.0 Hz, 2H), 7.07-7.04 (dd, J=2.4 Hz, J=2.4 Hz, 1H), 6.43 (s, 1H), 5.96-5.96 (d, J=1.6 Hz, 1H), 5.48 (s, 1H), 4.51 (m, 1H), 4.09-4.07 (m, 2H). 3.63 (s, 3H), 3.53 (s, 3H), 2.95 (d, J=7.2 Hz, 2H), 1.16 (t, J=7.2 Hz, 3H). MS (ESI): mass calcd. for C₂₅H₂₄ClNO₅, 453.13; m/z found, 454.2[M+H]⁺.

Example 1C Ethyl-2-((5R,7S)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.8 (s, 1H), 7.38 (d, J=8.4 Hz, 1H), 7.25 (d, J=8.4 Hz, 2H), 7.08 (d, J=8.4 Hz, 2H), 7.03-7.00 (dd, J=14.0 Hz, J=2.0 Hz, 1H), 6.81 (bs, 1H), 6.35 (s, 1H), 5.95 (s, 1H), 4.88 (t, J=8.4 Hz, 1H), 4.09-4.04 (m, 2H). 3.75 (s, 3H), 3.4 (s, 3H), 2.80-2.78 (m, 2H), 1.16 (t, J=7.2 Hz, 3H). MS (ESI): mass calcd. for C₂₅H₂₄ClNO₅, 453.13; m/z found, 454.2[M+H]⁺.

Example 1D Ethyl-2-((5R,7R)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.98 (s, 1H), 7.45 (d, J=8.4 Hz, 3H), 7.31 (d, J=8.0 Hz, 2H), 7.07-7.04 (dd, J=2.4 Hz, J=2.4 Hz, 1H), 6.43 (s, 1H), 5.96-5.96 (d, J=1.6 Hz, 1H), 5.48 (s, 1H), 4.51 (m, 1H), 4.09-4.07 (m, 2H). 3.63 (s, 3H), 3.53 (s, 3H), 2.95 (d, J=7.2 Hz, 2H), 1.16 (t, J=7.2 Hz, 3H). MS (ESI): mass calcd. for C₂₅H₂₄ClNO₅, 453.13; m/z found, 454.2[M+H]⁺.

Following compounds were synthesized using the above procedure as exemplified in example 1

Example 2 ±Ethyl-2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

MS (ESI): mass calcd. for C₂₅H₃₁NO₅, 425.1; m/z found, 426.2[M+H]⁺.

Example 3 ±Ethyl-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

MS (ESI): mass calcd. for C₂₃H₂₇NO₅, 397.2; m/z found, 398.2 [M+H]⁺.

Example 4 ±Ethyl-2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

MS (ESI): mass calcd. for C₂₅H₂₆N₂O₅, 434.2; m/z found, 435.2[M+H]⁺.

Example 5 ±Ethyl-2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

(ESI): mass calcd for C₂₄H₂₁ClFNO₄, 441.2; m/z found, 442.2 [M+H]⁺.

Example 6 ±Ethyl-2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate

(ESI): mass calcd for C₂₅H₂₁ClF₃NO₄, 491.3; m/z found, 492.3 [M+H]⁺.

Example 7 ±7(4-chlorophenyl)-5-(2-hydroxyethyl) 9-methoxy,2-methyl,5,7dihydrobenzo[5,6]oxepino[4,3-c]pyridin-3(2H)-one

To a stirred solution of ethyl 2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate (example 1) (0.025 g, 0.055 mmol) in dry THF (1 mL), at 0° C. Lithium Aluminium Hydride (0.0023, 0.06 mmol, 2M in THF) was added dropwise and stirred at same temperature for 1 h. After the completion of reaction, reaction mixture was quenched with saturated ammonium chloride solution. Reaction mixture was extracted with DCM dried over sodium sulphate and concentrated. The crude product was purified by Biotage purifier, eluted in 1%-5% DCM/Methanol to yield 7-(4-chlorophenyl)-5-(2-hydroxyethyl)-9-methoxy-2-methyl-5,7-dihydrobenzo[5,6]oxepino[4,3-c]pyridin-3(2H)-one as a off-white solid (8 mg, 35% yield). ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.78 (s, 1H), 7.37 (d, J=8.4 Hz, 1H), 7.27 (d, J=7.6 Hz, 2H), 7.12 (d, J=7.6 Hz, 2H). 7.00 (d, J=8.4 Hz, 1H), 6.68 (s, 1H), 6.34 (s, 1H), 5.92 (s, 1H), 4.70-4.60 (m, 1H), 4.50-4.45 (m, 1H), 3.72 (s, 3H), 3.60-3.48 (m, 2H), 3.43 (s, 3H), 1.82-1.70 (m, 2H). MS (ESI): mass calcd. for C₂₃H₂₂ClNO₄, 411.1; m/z found, 412.1 [M+H]⁺.—

Example 8 ±2-(7-(4-chlorophenyl)9methoxy2methyl3oxo2,3,5,7tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

To a stirred solution of ethyl 2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate (example 1) (0.5 g, 1.1 mmol) in THF (2 mL), trimethyl aluminium (4.4 mL, 8.8 mmol) and 2 M ethyl amine solution (4.4 mL, 8.8 mmol) was added at 0° C. under nitrogen atmosphere. The mixture was stirred for 1 h at 90° C. The mixture was quenched with saturated ammonium chloride. The residue was partitioned with ethyl acetate and water. The organic layer was washed with cold water, dried over Na₂SO₄, concentrated under reduced pressure. The crude was purified by HPLC using Inertsil ODS (250 mm×4.6 mm×5μ) column with 0.01% ammonia/water and ACN as mobile phase with UV detection 254 nm was utilized. 160 mg of a mixture of diastereomer 8A and 140 mg of a mixture of diastereomer 8B obtained.

Preparative Chiral HPLC method for the separation of diastereomers 8A and 8B:

Column: CHIRALPAK IA (250 mm×4.6 mm×5 μm)

Wavelength: 254 nm UV Injection Volume: 25.0 μl/min 20 deg C. Eluent: 80:20:0.1 MTBE:MeOH:DEA

Example 8C 2-((5S,7R)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H-NMR (DMSO-d₆, 400 MHz) δ (ppm): 7.95 (br. s., 1H), 7.75 (s, 1H), 7.37 (d, J=8.8 Hz, 1H), 7.22 (d, J=8.4 Hz, 2H), 7.04-6.99 (m, 3H), 6.92 (s, 1H), 6.30 (s, 1H), 5.97 (s, 1H), 4.86 (t, J=7.2 Hz, 1H), 3.76 (s, 3H), 3.41 (s, 3H), 3.06-3.03 (m, 2H), 2.64-2.62 (m, 2H), 0.98 (t, J=7.2 Hz, 3H). MS (ESI): mass calcd. for C₂₅H₂₅ClN₂O₄, 452.2; m/z found, 453.2[M+H]⁺.

Example 8D 2-((5S,7S)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H-NMR (DMSO-d₆, 400 MHz) δ (ppm): 8.02 (br. s., 1H), 7.96 (s, 1H), 7.45-7.41 (m, 3H), 7.34 (d, J=8.4 Hz, 2H), 7.07-7.04 (m, 1H), 6.44 (s, 1H), 5.94 (s, 1H), 5.46 (s, 1H), 4.52 (t, J=6.8 Hz, 1H), 3.62 (s, 3H), 3.53 (s, 3H), 3.10-3.00 (m, 2H), 2.70-2.68-2.66 (m, 2H), 1.00 (t, J=7.2 Hz, 3H). MS (ESI): mass calcd. for C₂₅H₂₅ClN₂O₄, 452.2; m/z found, 453.2[M+H]⁺.

Example 8E 2-((5R,7S)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H-NMR (DMSO-d₆, 400 MHz) δ (ppm): 7.95 (br. s., 1H), 7.75 (s, 1H), 7.37 (d, J=8.8 Hz, 1H), 7.22 (d, J=8.4 Hz, 2H), 7.04-6.99 (m, 3H), 6.92 (s, 1H), 6.30 (s, 1H), 5.97 (s, 1H), 4.86 (t, J=7.2 Hz, 1H), 3.76 (s, 3H), 3.41 (s, 3H), 3.06-3.03 (m, 2H), 2.64-2.62 (m, 2H), 0.98 (t, J=7.2 Hz, 3H). MS (ESI): mass calcd. for C₂₅H₂₅ClN₂O₄, 452.2; m/z found, 453.2[M+H]⁺.

Example 8F 2-((5R,7R)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H-NMR (DMSO-d₆, 400 MHz) δ (ppm): 8.02 (br. s., 1H), 7.96 (s, 1H), 7.45-7.41 (m, 3H), 7.34 (d, J=8.4 Hz, 2H), 7.07-7.04 (m, 1H), 6.44 (s, 1H), 5.94 (s, 1H), 5.46 (s, 1H), 4.52 (t, J=6.8 Hz, 1H), 3.62 (s, 3H), 3.53 (s, 3H), 3.10-3.00 (m, 2H), 2.70-2.68-2.66 (m, 2H), 1.00 (t, J=7.2 Hz, 3H). MS (ESI): mass calcd. for C₂₅H₂₅ClN₂O₄, 452.2; m/z found, 453.2[M+H]⁺.

Following compounds were synthesized using the above procedure as exemplified in example 8

Example 9 ±2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

This compound was synthesized and purified as described for synthesizing compound 8 and the diastereoisomers were separated by HPLC to give 9A and 9B using similar conditions for separating 8A and 8B

Example 9A ±2-((5S,7R)-7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹HNMR: (400 MHz, DMSO-d₆) 7.91 (br.s, 1H) 7.83 (s, 1H) 7.36 (d, J=8.4 Hz, 1H) 7.02-7.01 (m, 1H) 6.94-6.92 (m, 1H), 6.23 (s, 1H), 4.66-4.63 (m, 1H), 4.60-4.58 (m, 1H), 3.78 (m, 3H), 3.48 (s, 3H), 3.07-3.00 (m, 2H), 2.66-2.53 (m, 2H), 1.56-1.47 (m, 4H), 1.37 (m, 1H), 1.22 (m, 1H), 1.33-0.98 (m, 6H), 0.89-0.85 (m, 2H). (ESI): mass calcd for C₂₅H₃₂N₂O₄, 424.3; m/z found, 425.0 [M+H]⁺.

Example 9B ±2-((5S,7S)-7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

(ESI): mass calcd for C₂₅H₃₂N₂O₄, 424.3; m/z found, 425.0 [M+H]⁺.

Example 10 ±2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

Compound 10 was synthesized and purified as described for synthesizing compound 8 and the diastereoisomers were separated by HPLC to give 10A and 10B using similar conditions for separating 8A and 8B

Example 10A ±2-((5S,7R)-7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H-NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.90-7.85 (m, 2H), 7.34 (d, J=8.4 Hz, 1H), 6.95 (d, J=8.4 Hz, 1H), 6.85 (s, 1H), 6.26 (s, 1H), 4.81 (t, J=6.0 Hz, 1H), 4.71 (t, J=6.8 Hz, 1H), 3.77 (s, 3H), 3.47 (s, 3H), 3.10-2.95 (m, 2H), 1.56-1.45 (m, 1H), 1.30-1.20 (m, 2H), 0.95 (t, J=6.8 Hz, 3H), 0.55-0.45 (m, 1H), 0.3-0.15 (m, 2H), (−)0.12-(−)0.13 (m, 2H). MS (ESI): mass calculated for C₂₃H₂₈N₂O₄, 396.2; m/z found, 397.2[M+H]⁺.

Example 10B ±2-((5S,7S)-7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H-NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.93 (br. s., 1H), 7.84 (s, 1H), 7.36 (d, J=8.4 Hz, 1H), 7.02 (d, J=8.4 Hz, 1H), 6.95 (s, 1H), 6.42 (s, 1H), 4.26 (t, J=Hz, 1H), 4.20 (t, J=Hz, 1H), 3.80 (s, 3H), 3.48 (s, 3H), 3.01-2.95 (m, 2H), 2.70-2.60 (m, 2H), 1.82-1.70 (m, 2H), 0.95 (t, J=7.2 Hz, 3H), 0.75-0.60 (m, 1H), 0.33-0.31 (m, 2H), 0.05-0.015 (m, 2H). MS (ESI): mass calculated for C₂₃H₂₈N₂O₄, 396.2; m/z found, 397.2[M+H]⁺.

Example 11 ±2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

Compound 11 was synthesized and purified as described for synthesizing compound 8 and the diastereoisomers were separated by HPLC to give 11A and 11B using similar conditions for separating 8A and 8B.

Example 11A ±2-((5S,7S)-9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹HNMR: (400 MHz, DMSO-d₆): δ (ppm) 8.36 (s, 1H), 8.04 (t, J=8 Hz, 1H), 7.96 (s, 1H), 7.79 (d, J=8 Hz, 1H), 7.53 (d, J=8 Hz, 1H), 7.43 (d, J=8 Hz, 1H), 7.05-7.03 (m, 1H), 6.45 (s, 1H), 5.83 (s, 1H), 5.40 (s, 1H), 4.54-4.51 (m, 1H), 3.61 (s, 3H), 3.52 (s, 3H), 3.09-3.00 (m, 2H), 2.70-2.69 (m, 2H), 2.30 (s, 3H), 0.99 (t, J=8 Hz, 3H). (ESI): mass calcd for C₂₅H₂₇N₃O₄, 433.1; m/z found, 434.2.0 [M+H]⁺.

Example 11B ±2-((5S,7R)-9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

(ESI): mass calcd for C₂₅H₂₇N₃O₄, 433.1; m/z found, 434.2.0 [M+H]⁺.

Example 12 ±2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

Compound 12 was synthesized and purified as described for synthesizing compound 8 and the diastereoisomers were separated by HPLC to give 12A and 12B using similar conditions for separating 8A and 8B.

Example 12A ±-2-((5S,7R)-7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 8.03 (br.s., 2H), 7.57-7.53 (m, 1H), 7.45 (d, J=8.0 Hz, 2H), 7.36-7.34 (m, 2H), 6.45 (s, 1H), 6.16 (d, J=8.0 Hz, 1H), 5.48 (s, 1H), 4.49-4.46 (m, 1H), 3.52 (s, 3H), 3.05-3.01 (m, 3H), 2.69-2.64 (m, 2H), 0.98 (t, J=8.0 Hz, 3H); MS(ESI): mass calcd for C₂₄H₂₂ClFN₂O₃, 440.1; m/z found, 441.2 [M+H]⁺.

Example 12B ±2-((5S,7S)-9-fluoro-2-methyl-3-oxo-7-phenyl-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.93 (s, 1H), 7.83 (s, 1H), 7.50-7.47 (m, 1H), 7.22 (d, J=8.0 Hz, 2H), 7.16-7.14 (m, 1H), 7.05 (d, J=8.0 Hz, 2H), 6.31 (s, 1H), 5.99 (s, 1H), 4.87-4.85 (m, 1H), 3.41 (s, 3H), 3.05-3.02 (m, 2H), 2.64-2.58 (m, 3H), 0.90 (t, J=8.0 Hz, 3H); MS(ESI): mass calcd for C₂₄H₂₂ClFN₂O₃, 440.1; m/z found, 441.2 [M+H]⁺.

Example 13 2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

Compound 13 was synthesized and purified as described for synthesizing compound 8 and the diastereoisomers were separated by HPLC to give 13A and 13B using similar conditions for separating 8A and 8B

Example 13A ±2-((5S,7R)-7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 8.15 (s, 1H), 8.01 (t, J=8 Hz, 1H), 7.85 (br.s., 1H), 7.75 (d, J=8.0 Hz, 1H), 7.47 (d, J=8.0 Hz, 2H), 7.37 (d, J=8.0 Hz, 2H), 6.67 (s, 1H), 6.48 (s, 1H), 5.57 (s, 1H), 4.49 (t, J=8.0 Hz, 1H), 3.54 (s, 3H), 3.07-3.03 (m, 2H), 2.69 (d, J=4.0 Hz, 2H), 0.98 (t, J=8.0 Hz, 3H). MS(ESI): mass calcd for C₂₅H₂₂ClF₃N₂O₃, 490.1; m/z found, 491.1 [M+H]⁺.

Example 13B ±2-((5S,7S)-7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.95 (br.s., 2H), 7.79 (d, J=8 Hz, 1H), 7.67 (d, J=8 Hz, 2H), 7.24 (d, J=8 Hz, 2H), 7.03 (d, J=8 Hz, 2H), 6.34 (s, 1H), 6.15 (s, 1H), 4.86 (t, J=7.8 Hz, 1H), 3.42 (s, 3H), 3.05-3.01 (m, 3H), 2.64-2.62 (m, 2H), 0.96 (t, J=8 Hz, 3H). MS(ESI): mass calcd for C₂₅H₂₂ClF₃N₂O₃, 490.1; m/z found, 491.1 [M+H]⁺.

Example 14 ±-Ethyl-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

To a stirred solution of (E)-ethyl 3-(5-(2-(4-chlorobenzoyl)-4-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)acrylate (step F, example 1, compound VIII) (0.01 g, 0.22 mmol) in ethanol (2 mL), ammonium formate (0.280 mg, 4.4 mmol) was added at room temperature under nitrogen atmosphere. The reaction mixture was stirred at 95° C. for 4 h. After 4 h heating the reaction was monitored by LCMS. The reaction mixture was cooled to room temperature and concentrated under reduced pressure. The residue was partitioned with ethyl acetate and water. The organic layer was washed with brine, dried over Na₂SO₄ and concentrated under reduced pressure to get thick mass. The crude was purified by combi-flash eluting with (0-10%) MeOH: DCM. The pure fractions were concentrated to obtain white solid (15 mg, 15%). ¹HNMR (400 MHz, DMSO-d₆): δ(ppm) 8.02 (s, 1H), 7.65 (d, J=8, 1H), 7.46-7.40 (m, 4H), 7.28-7.25 (m, 1H), 6.75-6.73 (m, 1H), 6.34 (s, 1H), 4.22-4.06 (m, 3H), 3.75 (s, 3H), 3.46 (s, 3H), 3.25-3.14 (m, 2H), 1.17 (t, J=7.2 Hz, 3H). MS(ESI): mass calcd for C₂₅H₂₃ClN₂O₄, 450.2; m/z found, 451.2 [M+H]⁺.

Following compounds were synthesized using the above procedure as exemplified in example 14

Example 15 ±Ethyl-2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

MS(ESI): mass calcd for C₂₅H₃₀N₂O₄, 422.0; m/z found, 423.2 [M+H]⁺.

Example 16 ±Ethyl-2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

MS (ESI): mass calculated for C₂₄H₂₃N₃O₄, 417.2; m/z found, 418.2.1[M+H]⁺.

Example 17 ±Ethyl-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

MS (ESI): mass calculated for C₂₀H₁₉F₃N₂O₄, 394.1; m/z found, 395.1[M+H]⁺.

Example 18 ±Ethyl-2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

¹H-NMR (DMSO-d₆, 400 MHz) δ (ppm): 8.06 (s, 1H), 7.68 (d, J=8.8 Hz, 1H), 7.37-7.32 (m, 1H), 7.11 (s, 1H), 6.40 (s, 1H), 4.30-4.25 (m, 1H), 4.12-3.90 (m, 2H), 3.81 (s, 3H), 3.46 (s, 3H), 3.30-3.12 (m, 2H), 1.14 (t, J=6.8 Hz, 3H). MS (ESI): mass calculated for C₂₀H₁₉F₃N₂O₄, 408.1; m/z found, 409.1[M+H]⁺.

Example 19 ±Ethyl-2-(9-methoxy-2,7-dimethyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

¹H-NMR (DMSO-d₆, 400 MHz) δ (ppm): 7.90 (s, 1H), 7.51 (d, J=8.8 Hz, 1H), 7.23-7.22 (m, 1H), 7.16-7.13 (m, 1H), 6.24 (s, 1H), 4.03-3.99 (m, 3H), 3.83 (s, 3H), 3.44 (s, 3H), 3.05-3.01 (m, 2H), 2.24 (s, 3H), 1.12 (t, J=7.6 Hz, 3H). MS (ESI): mass calculated for C₂₀H₂₂N₂O₄, 354.20; m/z found, 355.1 [M+H]⁺.

Example 20 ±Ethyl-2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

¹HNMR: (400 MHz, DMSO-d₆) 8.29 (s, 1H), 7.98 (s, 1H), 7.98-7.76 (d, J=8 Hz, 1H), 7.69-7.67 (d, J=8 Hz, 1H), 7.58-7.56 (d, J=8 Hz, 1H), 7.21-7.18 (dd, 1H), 6.72-6.71 (m, 1H), 6.33 (s, 1H), 4.26-4.25 (m, 1H), 4.04-4.05 (m, 2H), 3.71 (s, 3H), 3.44 (s, 3H), 3.27-3.22 (dd, 1H), 3.15-3.13 (dd, 1H), 2.29 (s, 3H), 1.17-1.13 (t, J=5.2 Hz, 3H). MS (ESI): mass calculated for C₂₄H₂₅N₃O₄, 431.2; m/z found, 432.2[M+H]⁺.

Example 21 ±Ethyl-2-(7-(4-chlorophenyl)-2-isopropyl-9-methoxy-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

MS (ESI): mass calculated for C₂₇H₂₇ClN₂O₄, 478.1; m/z found, 479.1[M+H]⁺.

Example 22 ±Ethyl-2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

MS(ESI): mass calcd for C₂₄H₂₀ClFN₂O₃, 438.1; m/z found, 439.1 [M+H]⁺.

Example 23 ±Ethyl-2-(7-(2,6-difluorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

MS(ESI): mass calcd for C₂₅H₂₂F₂N₂O₄, 452.1; m/z found, 453.2 [M+H]⁺.

Example 24 ±Ethyl-2-(7-(4-chloro-2-methylphenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate

MS(ESI): mass calcd for C₂₆H₂₅ClN₂O₄, 464.2; m/z found, 465.2 [M+H]⁺.

Example 25 ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

The compound was synthesized according to the procedure for example 8. ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 8.13 (br. s., 1H), 7.99 (s, 1H), 7.62 (d, J=8.4 Hz, 1H), 7.48-7.38 (m, 4H), 7.25-7.24 (m, 1H), 6.73 (d, J=2.0 Hz, 1H). 6.35 (s, 1H), 4.24 (t, J=7.2 Hz, 1H), 3.73 (s, 3H), 3.44 (s, 3H), 3.08-3.04 (m, 2H), 2.93-2.91 (m, 2H), 1.00 (t, J=7.6 Hz, 3H). MS (ESI): mass calcd. for C₂₅H₂₄ClN₃O₃, 449.1; m/z found, 450.4[M+H]⁺.

Chiral Separation Conditions, 25A and 25B

Analytical Conditions:

Column: chiralpak IA (250 mm×4.6 mm×5ìm)

Mobile phase: MtBe:IPA with 0.1% TFA (70:30)

Flow rate: 1.0 mL/min; Injection Volume: 20.00 ul

PDA detector, wavelength: 261.0 nm

Example 25A (S)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS (ESI): mass calcd. for C₂₅H₂₄ClN₃O₃, 449.1; m/z found, 450.2[M+H]⁺.

Example 25B (R)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS (ESI): mass calcd. for C₂₅H₂₄ClN₃O₃, 449.1; m/z found, 450.2[M+H]⁺.

The following compounds were synthesized using the procedure for synthesizing 25

Example 26 ±2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d6), δ (ppm): 8.02 (br.s., 1H) 7.90 (s, 1H) 7.48-7.46 (d J=8.4 Hz, 1H) 7.16-7.15 (m, 1H) 7.12-7.10 (m, 1H), 6.28 (s, 1H), 4.01 (t, J=6.8 Hz, 1H), 3.83 (s, 3H), 3.43 (s, 3H), 3.04-2.97 (m, 2H), 2.89-2.70 (m, 3H), 1.82-1.00 (m, 9H), 0.96 (t, J=7.2 Hz, 3H), 0.67-0.59 (m, 1H). MS(ESI): mass calcd for C₂₅H₃₁N₃O₃, 421.2; m/z found, 422.5[M+H]⁺.

Compound 26 was chiral separated (26A and 26B) following the procedures used for separating 25A and 25B

Example 26A (S)-2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS(ESI): mass calcd for C₂₅H₃₁N₃O₃, 421.2; m/z found, 422.5[M+H]⁺.

Example 26B (R)-2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS(ESI): mass calcd for C₂₅H₃₁N₃O₃, 421.2; m/z found, 422.5[M+H]⁺.

Example 27 ±2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d6): δ (ppm) 8.45 (d, J=4 Hz, 1H), 8.14 (br. s., 1H), 7.97 (s, 1H), 7.92-7.82 (m, 2H), 7.57 (d, J=12 Hz, 1H), 7.42-7.39 (m, 1H), 7.20-7.18 (m, 1H), 6.71 (s, 1H), 6.36 (s, 1H), 4.31 (t, J=6.4 Hz, 1H), 3.71 (s, 3H), 3.44 (s, 3H), 3.08-3.05 (m, 2H), 2.94-2.93 (m, 2H), 1.01 (t, J=7.2 Hz, 3H). MS (ESI): mass calculated for C₂₄H₂₄N₄O₃, 416.1; m/z found, 417.3.1[M+H]⁺.

Compound 27 was chiral separated (27A and 27B) following the procedures used for separating 25A and 25B

Example 27A (S)-2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS (ESI): mass calculated for C₂₄H₂₄N₄O₃, 416.1; m/z found, 417.3.1[M+H]⁺.

Example 27B (R)-2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS (ESI): mass calculated for C₂₄H₂₄N₄O₃, 416.1; m/z found, 417.3.1[M+H]⁺.

Example 28 ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetamide

¹H NMR (DMSO-d6): δ (ppm) 12.28 (s, 1H), 8.01 (s, 1H), 7.63 (d, J=8.4 Hz, 1H), 7.45-7.40 (m, 4H), 7.26-7.23 (m, 1H), 6.74-6.71 (m, 1H), 6.31 (s, 1H), 4.17 (t, J=3.8 Hz, 1H), 3.73 (s, 3H), 3.45 (s, 3H), 3.13-3.08 (m, 3H). MS (ESI): mass calcd. for C₂₃H₂₀ClN₃O₃, 421.8; m/z found, 423.1 [M+H]⁺.

Example 29 ±2-(7-(4-chlorophenyl)-9-hydroxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz) δ (ppm): 9.79 (s, 1H), 8.12 (br.s., 1H), 7.94 (s, 1H), 7.5 (d, J=8.8 Hz, 1H), 7.45-7.38 (m, 4H), 7.04-7.01 (m, 1H), 6.60-6.59 (m, 1H), 6.33 (s, 1H), 4.22 (t, J=7.2 Hz, 1H), 3.43 (s, 3H), 3.08-3.03 (m, 2H), 2.93-2.88 (m, 2H), 1.00 (t, J=7.2 Hz, 3H). MS (ESI): mass calculated for C₂₄H₂₂ClN₃O₃, 435.90; m/z found, 436.1[M+H].

Example 30 ±2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 8.03 (br. s, 1H), 7.91 (s, 1H), 7.49 (d, J=8.8 Hz, 1H), 7.20 (d, J=2.8 Hz, 1H), 7.13 (dd, J1=2.4 Hz, J2=8.8 Hz, 1H), 6.28 (s, 1H), 4.05 (t, J=7.2 Hz, 1H), 3.83 (s, 3H), 3.44 (s, 3H), 3.10-2.95 (m, 2H), 2.85-2.76 (m, 3H), 2.34-2.25 (m, 1H), 0.96 (t, J=7.2 Hz, 3H), 0.65-0.55 (m, 1H), 0.24-0.15 (m, 2H), (−) 0.05-(−) 0.12 (m, 2H). MS (ESI): mass calcd. for C₂₃H₂₇N₃O₃, 393.2; m/z found, 394.2 [M+H]⁺.

Compound 30 was chiral separated (30A and 30B) following the procedures used for separating 25A and 25B

Example 30A (S)-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS (ESI): mass calcd. for C₂₃H₂₇N₃O₃, 393.2; m/z found, 394.2 [M+H]⁺.

Example 30B (R)-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS (ESI): mass calcd. for C₂₃H₂₇N₃O₃, 393.2; m/z found, 394.2 [M+H]⁺.

Example 31 ±2-(7-(4-chlorophenyl)-9-(difluoromethoxy)-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS (ESI): mass calculated for C₂₅H₂₂ClF₂N₃O₃, 485.1; m/z found, 486.1[M+H]⁺.

Example 32 ±2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H-NMR (DMSO-d₆, 400 MHz) δ (ppm): 8.10 (t, J=5.2 Hz, 1H), 8.04 (s, 1H), 7.68 (d, J=8.8 Hz, 1H), 7.38-7.32 (m, 1H), 7.11 (s, 1H), 6.39 (s, 1H), 4.35-4.30 (m, 1H), 3.85 (s, 3H), 3.44 (s, 3H), 3.08-2.90 (m, 4H), 0.97 (t, J=6.8 Hz, 3H). MS (ESI): mass calculated for C₂₀H₂₀F₃N₃O₃, 407.1; m/z found, 408.3[M+H]⁺.

Compound 32 was chiral separated (32A and 32B) following the procedures used for separating 25A and 25B

Example 32A (S)-2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS (ESI): mass calculated for C₂₀H₂₀F₃N₃O₃, 407.1; m/z found, 408.3[M+H]⁺.

Example 32B

(R)-2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

MS (ESI): mass calculated for C₂₀H₂₀F₃N₃O₃, 407.1; m/z found, 408.3[M+H]⁺.

Example 33 ±2-(7-(4-cyanophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d6), δ (ppm): 8.15 (t, J=7.4 Hz, 1H), 8.00 (s, 1H), 7.84 (d, J=8.4 Hz, 1H), 7.64 (d, J=8.8 Hz, 1H), 7.56 (d, J=8.4 Hz, 2H), 7.41-7.45 (m, 1H), 7.25-7.28 (m, 1H), 6.71 (d, J=2.8 Hz, 1H), 6.36 (s, 1H), 4.28 (t, J=7.2 Hz, 1H), 3.73 (s, 3H), 3.44 (s, 3H), 3.03-3.08 (m, 2H), 2.92-2.95 (m, 2H), 1.01 (t, J=8.0 Hz, 3H); MS(ESI): mass calcd for C₂₆H₂₄N₄O₃, 440.1; m/z found, 441.2[M+H]⁺.

Example 34 ±2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹HNMR: (400 MHz, DMSO-d₆), δ (ppm): 8.29 (s, 1H), 8.13 (br.s., 1H), 7.96 (s, 1H), 7.81 (d, J=8 Hz, 1H), 7.68 (d, J=5.2 Hz, 1H), 7.55 (d, J=8 Hz, 1H), 7.19-7.17 (m, 1H), 6.39 (s, 1H), 4.28 (t, J=6.4 Hz, 1H), 3.71 (s, 3H), 3.44 (s, 3H), 3.08-3.04 (m, 2H), 2.93-2.91 (m, 2H), 2.29 (s, 3H), 1.03 (t, J=8 Hz, 3H). MS(ESI): mass calcd for C₂₅H₂₆N₄O₃, 430.1; m/z found, 431.2[M+H]⁺.

Example 35 ±2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 8.20 (s, 1H), 8.13 (br.s., 1H), 8.01 (d, J=8.0 Hz, 1H), 7.94 (d, J=8.0 Hz, 1H), 7.53 (s, 1H), 7.46 (d, J=8.0 Hz, 2H), 7.37 (d, J=8.0 Hz, 2H), 6.39 (s, 1H), 4.23 (t, J=8.0 Hz, 1H), 3.47 (s, 3H), 3.09-3.03 (m, 2H), 2.95 (d, J=8.0 Hz, 2H), 1.00 (t, J=8.0 Hz, 3H). MS(ESI): mass calcd for C₂₅H₂₁ClF₃N₃O₂, 487.1; m/z found, 488.3[M+H]⁺ LCMS: 488.3 [M+H].

Example 36 ±2-(7-(4-chlorophenyl)-2-isopropyl-9-methoxy-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz): 8.13 (br. s., 1H), 7.89 (s, 1H), 7.66 (d, J=8.4 Hz, 1H), 7.50-7.40 (m, 4H), 7.27-7.23 (m, 1H), 6.75 (d, J=2.4 Hz, 1H), 6.35 (s, 1H), 5.10-4.95 (m, 1H), 4.25 (t, J=7.2 Hz, 1H), 3.74 (s, 3H), 3.10-3.05 (m, 2H), 2.92 (d, J=6.8 Hz, 2H), 1.38 (d, J=6.4 Hz, 3H), 1.26 (d, J=7.2 Hz, 3H), 1.01 (t, J=7.6 Hz, 3H); MS(ESI): mass calcd for C₂₇H₂₈ClN₃O₃, 477.1; m/z found, 478.1[M+H]⁺.

Example 37 ±2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 8.13 (t, J=8 Hz, 1H), 8.06 (s, 1H), 7.77-7.73 (m, 1H), 7.56-7.51 (m, 1H), 7.46-7.36 (m, 4H), 7.11-7.086 (dd, J=4 Hz, J=4 Hz, 1H), 6.36 (s, 1H), 4.22 (t, J=8.0 Hz, 1H), 3.45 (s, 3H), 3.09-3.03 (m, 2H), 2.94-2.92 (m, 2H), 1.00 (t, J=8.0 Hz 3H). MS(ESI): mass calcd for C₂₄H₂₁ClFN₃O₂, 437.1; m/z found, 438.1[M+H]⁺.

Example 38 ±2-(7-(2,6-difluorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 8.06-8.05 (m, 2H), 7.64 (d, J=8.4 Hz, 1H), 7.56-7.45 (m, 1H), 7.23-7.20 (m, 1H), 7.10-7.08 (m, 2H), 6.59 (s, 1H), 6.36 (s, 1H), 4.33 (t, J=6.8 Hz, 1H), 3.73 (s, 3H), 3.48 (s, 3H), 3.05-3.03 (m, 2H), 2.89 (d, J=Hz, 2H), 1.00 (t, J=7.2 Hz, 3H). MS (ESI): mass calculated for C₂₅H₂₃F₂N₃O₃, 451.2; m/z found, 452.2[M+H]⁺.

Example 39 ±2-(7-(4-chloro,2-methylphenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide

¹H NMR (DMSO-d₆, 400 MHz), δ (ppm): 8.09 (br. s., 1H), 8.03 (s, 1H), 7.62 (d, J=8.8 Hz, 1H), 7.27 (s, 1H), 7.25-7.20 (m, 2H), 6.98 (d, J=6.4 Hz, 1H), 6.44 (d, J=2.4 Hz, 1H), 6.31 (s, 1H), 4.28 (t, J=8.4 Hz, 1H), 3.67 (s, 3H), 3.48 (s, 3H), 3.10-2.78 (m, 4H), 1.94 (s, 3H), 1.00 (t, J=7.2 Hz, 3H); MS(ESI): mass calcd for C₂₆H₂₆ClN₃O₃, 463.1; m/z found, 464.1[M+H]⁺.

Example 40 ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-(4-hydroxyphenyl)acetamide

¹H NMR (DMSO-d₆): −δ (ppm) 9.96 (s, 1H), 9.11 (br.s., 1H), 8.02 (s, 1H), 7.64 (d, J=8.4 Hz, 1H), 7.45-7.40 (m, 4H), 7.33 (d, J=7.6 Hz, 2H), 7.26-7.24 (m, 1H), 6.73 (d, J=2.8 Hz, 1H), 6.66 (d, J=8.4 Hz, 2H), 6.41 (s, 1H), 4.31 (t, J=6.8 Hz, 1H), 3.73 (s, 3H), 3.45 (s, 3H), 3.12-3.08 (m, 2H); MS (ESI): mass calcd for C₂₉H₂₄ClN₃O₄, 513.1; m/z found, 514.4 [M+H]⁻.

Compound 40 was chiral separated (40A and 40B) following the procedures used for separating 25A and 25B

Example 40A (S)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-(4-hydroxyphenyl)acetamide

MS (ESI): mass calcd for C₂₉H₂₄ClN₃O₄, 513.1; m/z found, 514.4 [M+H]⁺.

Example 40B (R)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-(4-hydroxyphenyl)acetamide

MS (ESI): mass calcd for C₂₉H₂₄ClN₃O₄, 513.1; m/z found, 514.4 [M+H]⁺.

Example 41 ±7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one

Step a: N-(1-(5-bromo-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)ethyl)-2-methylpropane-2-sulfinamide

To a stirred solution of (E)-N-((5-bromo-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)methylene)-2-methylpropane-2-sulfinamide (X, 0.3 g, 0.94 mmol) in dry THF was cooled to −78° C. and then methylmagnesium bromide (0.13 mL, 1.12 mmol) was added dropwise and stirred at same temperature for 2 h and then stirred at room temperature for another 1 h. Reaction mixture was quenched with ammonium chloride solution and extracted with ethylacetate (25 mL×2). The organic layer was dried, concentrated under vacuum and purified by column chromatography using methanol/DCM as eluent to get N-(1-(5-bromo-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)ethyl)-2-methylpropane-2-sulfinamide (0.27 g, 86%) as yellow solid. MS (ESI): mass calcd for C₁₂H₁₉BrN₂O₂S, 334.0; m/z found, 335.0 [M+H]⁺.

Step b: N-(1-(5-(2-(4-chlorobenzoyl)-4-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)ethyl)-2-methylpropane-2-sulfinamide

To a stirred solution of N-(1-(5-bromo-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)ethyl)-2-methylpropane-2-sulfinamide (XI, 0.33 g, 0.98 mmol) and (4-chlorophenyl)(5-methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanone (VII, 0.441 g, 1.18 mmol) in toluene (20 mL) To this mixture, was added sodium bicarbonate (249 mg, 2.96 mmol) and Pd(PPh₃)₄ (0.114 g, 0.098 mmol) nitrogen was purged for 10 min at room temperature in inert condition. The reaction mixture was heated to 110° C. and stirred for 16 h. To the reaction mixture water was added and extracted with ethyl acetate, the organic layer was dried over by sodium sulfate and concentrated. The crude product was purified by column chromatography the product eluted at 6% of MeOH/DCM. to get the product (280 mg, 57% yield), MS (ESI): mass calcd. for C₂₆H₂₉ClN₂O₄S, 500.2; m/z found, 501.1 [M+H]⁺.

Step C: 7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one

To a stirred solution of N-(1-(5-(2-(4-chlorobenzoyl)-4-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)ethyl)-2-methylpropane-2-sulfinamide (XII, 0.280 g, 0.56 mmol) in 4N HCl in dioxane (5 mL) was stirred at room temperature for 1 h. After completion of reaction the solvent was evaporated then crude residue was basified with sodium bicarbonate and organic layer was extracted with DCM then dried over by sodium sulfate and concentrated and the crude was purified by column chromatography by using 5% methanol/DCM as eluent to get the compound 41 as pale yellow solid. (140 mg, 66% yield).

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.98 (s, 1H), 7.60 (d, J=9.2 Hz, 1H), 7.46-7.41 (m, 4H), 7.25-7.20 (m, 1H), 6.74 (d, J=2.4 Hz, 1H), 6.35 (s, 1H), 3.94 (q, J=6.1 Hz, 1H), 3.73 (s, 3H), 3.45 (s, 3H), 1.62 (d, J=6.4 Hz, 3H). MS (ESI): mass calculated for C₂₂H₁₉ClN₂O₂, 378.1; m/z found, 379.1[M+H]⁺.

Compound 41 was chiral separated (41A and 41B) following the procedures used for separating 25a and 25b

Example 41A (S)-7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one

MS (ESI): mass calculated for C₂₂H₁₉ClN₂O₂, 378.1; m/z found, 379.1[M+H]⁺.

Example 41B (R)-7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one

MS (ESI): mass calculated for C₂₂H₁₉ClN₂O₂, 378.1; m/z found, 379.1[M+H]⁺.

Example 42 ±7-(4-chlorophenyl)-9-methoxy-2-methyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one

The compound was synthesized using the procedure in the example 41

¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 8.03 (s, 1H), 7.60 (d, J=8.8 Hz, 1H), 7.47-7.41 (m, 4H), 7.23 (dd, J=2.4 Hz, 8.8 Hz, 1H), 6.71 (d, J=2.8 Hz, 1H), 6.46 (s, 1H), 4.70 (d, J=10.0 Hz, 1H), 3.86 (d, J=10 Hz, 1H), 3.72 (s, 3H), 3.45 (s, 3H). MS (ESI): mass calcd. for C₂₁H₁₇ClN₂O₂, 364.1; m/z found, 365.1 [M+H]⁺.

Example 43 ±2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-3,5-dihydro-2H benzo[c]pyrido[3,4-e]azepin-5-yl)acetic acid

Step A: 2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetic acid

Ammonium formate (0.41 g, 0.650 mmol) was added to a stirred solution of 3-(5-(2-(4-chlorobenzoyl)-4-(trifluoromethyl)phenyl)-1-methyl-2-oxo-1,2-dihydropyridin-4-yl)acrylic acid (0.150 g, 0.325 mmol) dissolved in ethanol (5 mL), was carried out in seal tube at 90° C. After 15 h the reaction mixture was cooled to room temperature and concentrated to get mass, which was taken in ethyl acetate and water. The organic layer was separated and dried over sodium sulfate and concentrated to get residue. The crude was purified by comb flash eluting with 0-80% ethyl acetate/hexane. The pure fractions were concentrated to obtain 2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetic acid (0.08 g, 57% yield) as a off-white solid. ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 12.32 (s, 1H), 8.01 (s, 1H), 8.02-8.00 (m, 1H), 7.96-7.94 (d, J=8 Hz, 1H), 7.54 (s, 1H), 7.50-7.48 (d, J=8 Hz, 2H), 7.39-7.37 (d, J=8 Hz, 2H), 6.36 (s, 1H), 4.176 (t, J=8 Hz, 1H), 3.47 (s, 3H), 3.17-3.12 (m, 2H); MS(ESI): mass calcd for C₂₃H₁₆ClF₃N₂O₃, 460.1; m/z found, 461.1[M+H]⁺.

Example 44 ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetic acid

To a stirred solution of ethyl 2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate (2.1 g, 4.65 mmol) in THF (30 ml) was added 1N NaOH (9.3 ml, 9.31 mmol) and stirred at rt for 3 hours. Reaction mixture was neutralized with 1N HCl solution (9.3 ml) and extracted with 5% MeOH/DCM (50 ml×2). The organic layer was dried over sodium sulphate and concentrated under vacuum to get compound 44 (1.95 g, 98.9%) as off-white solid. MS(ESI): mass calcd for C₂₃H₁₉ClN₂O₄, 422.1; m/z found, 423.1[M+H]⁺.

Example 45 ±tert-butyl ((7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)methyl)carbamate

To a stirred solution of 2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetic acid (example 44, 0.4 g, 0.945 mmol) in t-BuOH (20 mL), TEA (0.198 mL, 1.41 mmol), diphenylphosphoryl azide (0.225 mL, 1.04 mmol) at room temperature. The mixture was stirred at 105° C. for 24 h. The mixture was cooled to room temperature and concentrated under vacuum. The crude was dissolved in ethyl acetate and washed with saturated NaHCO₃ solution and brine, dried over sodium sulphate, concentrated under reduced pressure. The crude was purified by combiflash purifier by using 5-100% ethyl acetate/hexane as the eluent to get the product as off white solid. (0.15 g, 32% yield). ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 7.99 (s, 1H), 7.61 (d, J=8.4 Hz, 1H), 7.50 (d, J=8.4 Hz, 2H), 7.43 (d, J=8.8 Hz, 2H), 7.24-7.22 (m, 1H), 7.01-6.92 (m, 1H), 6.75 (d, J=2.8 Hz, 1H), 6.42 (s, 1H), 3.90-3.86 (m, 2H), 3.73 (s, 3H), 3.70-3.63 (m, 1H), 3.44 (s, 3H), 1.32 (s, 9H). MS (ESI): mass calcd. for C₂₇H₂₈ClN₃O₄, 493.2; m/z found, 494.1 [M+H]⁺.

Example 46 ±N-((7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)methyl)acetamide

Step A: 5-(aminomethyl)-7-(4-chlorophenyl)-9-methoxy-2-methyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one hydrochloride

To a stirred solution of tert-butyl ((7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)methyl)carbamate (example 45, 0.15 g, 0.3 mmol) in dioxan (1 mL), dioxin.HCl (5 mL) at 0° C. under nitrogen atmosphere. The mixture was concentrated under vacuum. The crude was washed with diethyl ether twice and dried under vacuum (0.1 g crude). MS (ESI): mass calcd. for C₂₂H₂₁Cl₂N₃O₂, 393.1; m/z found, 394.1[M+H]⁺.

Step B: To a stirred solution of 5-(aminomethyl)-7-(4-chlorophenyl)-9-methoxy-2-methyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one hydrochloride (XIII, 0.1 g crude, 0.25 mmol) in DCM (5 mL), triethyl amine (0.052 mL, 0.375 mmol) at 0° C. under nitrogen atmosphere. The mixture was stirred for 15 mins. Then acetyl chloride (0.021 mL, 0.3 mmol) was added at 0° C. The mixture was stirred for 1 h at room temperature. The mixture was quenched with water and extracted with DCM, dried over sodium sulphate, and dried under vacuum (0.006 g). ¹H NMR (DMSO-d₆, 400 MHz): δ (ppm) 8.06 (br.s., 1H), 7.99 (s, 1H), 7.61 (d, J=8.4 Hz, 1H), 7.50 (d, J=8.4 Hz, 2H), 7.43 (d, J=8.8 Hz, 2H), 7.24-7.22 (m, 1H), 6.73 (d, J=2.8 Hz, 1H), 6.4 (s, 1H), 3.9-3.85 (m, 2H), 3.72 (s, 3H), 3.71-3.69 (m, 1H), 3.48 (s, 3H), 1.7 (s, 3H). MS (ESI): mass calcd. for C₂₄H₂₂ClN₃O₃, 435.13; m/z found, 436.2[M+H]⁺.

Biological Methods

BRD4 AlphaLISA (Perkin Elmer)

Compounds were diluted by step-down dilution method (final concentration of DMSO was 1%) and added to the wells of a 384 well opti plate at desired concentrations. 5 nM BDR4-BD1 enzyme (produced in-house) and 12 nM of biotinylated substrate were added to the wells, covered and incubated at room temperature (RT) for 1 h. At the end of 1 h 250 ng of GSH acceptor beads were added to the well and incubated for 1 h at RT; then 500 ng of streptavidin donor beads were added and incubated again for 1 h at RT. Plates were read in a Pherastar reader at 680 nm excitation and 570 nm emission. As detailed above, compounds were tested for both BRD4 enzyme inhibitory activities and IC₅₀ were determined. The activities of selected compounds are listed in Table 1

Anticancer Activity: Alamar Blue Assay

The impact of the compounds on cancer cell proliferation was determined using the AML cell line MV4-11 (ATCC) in a 3-day proliferation assay. MV4-11 cells were maintained in RPMI supplemented with 10% FBS at 37° C., 5% CO₂. For compound testing, MV4-11 cells were plated in a 96-well black bottom plate at a density of 15,000 cells/well in 100 μL culture media and incubated at 37° C. overnight. Compound dilution series were prepared in DMSO via a 3-fold serial dilution from 10004 to 0.00504. The DMSO dilution series were then diluted with media, with the final compound concentrations added to the wells ranging from 1004 to 0.000504. After the additions of compounds, the cells were incubated for 72 h and the numbers of viable cells were determined using the Alamar Blue assay (Invitrogen), according the manufacturers suggested protocol. The fluorescent readings from the Alamar Blue assay were normalized to the DMSO treated cells and analyzed using the GraphPad Prism software with sigmoidal curve fitting to obtain EC₅₀. The selected compounds activities are listed in Table 1.

TABLE 1 Selected list of compounds with BRD4-BD1 IC₅₀ and Anti-cancer activity BRD4_BD1 MV4-11 Compound IC50_μM EC50_μM 1 0.024 ND 2 0.01 0.001 8F 0.012 0.024 11 0.061 0.175 14 0.003 0.002 18 0.122 ND 19 0.176 ND 23 0.001 0.005 25 0.0016 0.003 26 0.002 0.008 27 0.0044 0.112 28 0.036 0.326 30 0.01 0.118 32 0.049 0.108 35 0.077 0.04 37 0.004 0.028 38 <0.0005 0.013 39 0.004 0.008 Determination of Biomarker C-Myc and p21 in MV4-11 Cells.

MV4-11 cells were seeded in a 24-well plate at a density of 0.2×10⁶ cells/ml and incubated at 37° C. overnight. The cells were treated with the compounds at the indicated concentrations and time points. The cells were harvested at the indicated time points and protein extraction was performed using the RIPA buffer. For the tumor samples, the protein was extracted by homogenizing a small piece of the tumor in RIPA buffer. 25-50 μg protein was resolved in SDS-PAGE and subjected to Western Blotting. The antibodies against cMYC and p21 were purchased from Cell Signaling. The antibody against β-Actin was purchased from Sigma.

In Vivo Xenograft Model

The effects of the compounds to inhibit the growth of MV4-11 xenograft tumors were evaluated. Briefly, 5×10⁶ cells of MV4-11 cells; diluted 1:1 with matrigel were injected subcutaneously on the upper flanks of female nude mice (Charles Rivers Labs). The total volume injected per animal was 200 μL. The mice were observed for approximately 15-20 days with concomitant tumor volume measurement. The treatment was initiated post-randomization when the average tumor volume was approximately 100 mm³. The compounds were formulated in 0.02% Tween-80, 0.5% Methylcellulose and administered by oral gavage. The tumors were measured by a pair of callipers thrice a week starting at the time of size match, and tumor volumes were calculated according to the formula V═(L×W×H)×0.52 (V: volume, mm³; L: length, mm; W: width, mm; H: height, mm) The tumor volume and body weight were measured for the duration of the experiment, until the mean tumor volume in each group reached an endpoint of >1000 mm³. Compounds of formula I showing greater 50% tumor growth inhibition are considered as active.

Although the subject matter has been described in considerable detail with reference to certain embodiments thereof, other embodiments are possible. As such, the spirit and scope of the invention should not be limited to the description of the embodiments contained herein. 

We claim:
 1. A compound of the Formula (I)

or a tautomeric form, stereoisomer, polymorph, solvate, or pharmaceutically acceptable salts thereof; wherein ---- is a single bond or a double bond; X is selected from —O— or —N—; n is 0-6; R₁ is selected from alkyl or cycloalkyl; R₂ and R₃ are independently selected from hydrogen, halogen, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, alkyl, haloalkyl, alkoxy, haloalkoxy, arylalkoxy, cycloalkyl, cycloalkyloxy, aryl, heterocyclyl, heteroaryl, alkylamino, —COOR_(a), —C(O)R_(b), —C(S)R_(a), —C(O)NR_(a)R_(b), —C(S)NR_(a)R_(b), —NR_(a)C(O)NR_(b)R_(c), NR_(a)C(S)NR_(b)R_(c), —N(R_(a))SOR_(b), —N(R_(a))SO₂R_(b), —NR_(a)C(O)OR_(b), —NR_(a)R_(b), —NR_(a)C(O)R_(b)—, NR_(a)C(S)R_(b)—, —SONR_(a)R_(b)—, —SO₂NR_(a)R_(b)—, —OR_(a), —OR_(a)C(O)OR_(b)—, —OC(O)NR_(a)R_(b), OC(O)R_(a), —OC(O)NR_(a)R_(b)—, —R_(a)NR_(b)R_(c), —R_(a)OR_(b)—, —SR_(a), —SOR_(a) or —SO₂R_(a), wherein R_(a), R_(b) and R_(c) are independently selected from hydrogen, alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl or hetroarylalkyl; R₄ is selected from hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl, optionally substituted cycloalkylalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl or optionally substituted haloalkyl; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅; and R₅ and R₆ are independently selected from hydrogen, hydroxyl, aryl, heteroaryl, cycloalkyl, or alkyl, wherein R₅ and R₆ are optionally substituted.
 2. The compound of the Formula (I) as claimed in claim 1, wherein ---- is a single bond or a double bond; X is selected from —O— or —N—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈cycloalkyl; R₂ and R₃ are independently selected from hydrogen, fluoro, chloro, bromo, iodo, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈alkyl, C₁-C₈haloalkyl independently substituted with up to three halogen groups selected from fluoro, chloro, bromo, or iodo, C₁-C₈alkoxy, C₁-C₈haloalkoxy, C₅-C₁₈arylalkoxy, C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈aryl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl, alkylamino, —COOR_(a), —C(O)R_(b), —C(S)R_(a), —C(O)NR_(a)R_(b), —C(S)NR_(a)R_(b), —NR_(a)C(O)NR_(b)R_(c), NR_(a)C(S)NR_(b)R_(c), —N(R_(a))SOR_(b), —N(R_(a))SO₂R_(b), —NR_(a)C(O)OR_(b), —NR_(a)R_(b), —NR_(a)C(O)R_(b)—, NR_(a)C(S)R_(b)—, —SONR_(a)R_(b)—, —SO₂NR_(a)R_(b)—, —OR_(a), —OR_(a)C(O)OR_(b)—, —OC(O)NR_(a)R_(b), OC(O)R_(a), —OC(O)NR_(a)R_(b)—, —R_(a)NR_(b)R_(c), —R_(a)OR_(b)—, —SR_(a), —SOR_(a) or —SO₂R_(a), wherein R_(a), R_(b) and R_(c) are independently selected from hydrogen, C₁-C₈ alkyl, C₃-C₈cycloalkyl, C₅-C₁₈aryl, C₅-C₁₈arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl and C₂-C₁₈heteroarylalkyl; R₄ is selected from hydrogen, C₁-C₈alkyl, C₂-C₈alkynyl, C₃-C₈cycloalkyl, C₃-C₈cyloalkenyl, C₃-C₈cycloalkylalkyl, C₅-C₁₈aryl, C₅-C₁₈arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heterocyclylalkyl, C₂-C₁₈heteroaryl, C₂-C₁₈heteroarylalkyl or C₁-C₈haloalkyl, wherein alkyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano, amide, sulfonamide and carbamate, wherein the heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅, wherein R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₅-C₁₈aryl, C₂-C₁₈heteroaryl, C₃-C₈cycloalkyl or C₁-C₈alkyl; wherein R₅ and R₆ are optionally substituted with one or more substituents selected from fluorine, chlorine, bromine, iodine, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈alkyl, C₁-C₈haloalkylalkoxy, C₁-C₈haloalkoxy, C₅-C₁₈arylalkoxy, C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈aryl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl, alkylamino, —COOR^(a), —C(O)R^(b), —C(S)R^(a), —C(O)NR^(a)R^(b), —C(S)NR^(a)R^(b), —NR^(a)C(O)NR^(b)R^(c), NR^(a)C(S)NR^(b)R^(c), —N(R^(a))SOR^(b), —N(R^(a))SO₂R^(b), —NR^(a)C(O)OR^(b), —NR^(a)R^(b), —NR^(a)C(O)R^(b)—, NR^(a)C(S)R^(b)—, —SONR^(a)R^(b)—, —SO₂NR^(a)R^(b)—, —OR^(a), —OR^(a)C(O)OR^(b)—, —OC(O)NR^(a)R^(b), OC(O)R^(a), —OC(O)NR^(a)R^(b)—, —R^(a)NR^(b)R^(c), —R^(a)OR^(b)—, —SR^(a), —SOR^(a), or —SO₂R^(a), wherein R^(a), R^(b) and R are independently selected from hydrogen, or optionally substituted groups selected from alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl or hetroarylalkyl.
 3. The compound of Formula (1) as claimed in claim 2, wherein ---- is a single bond or a double bond; X is selected from —O— or —N—; n is 0-1; R₁ is selected from hydrogen, methyl, ethyl, n-propyl, ispopropyl, n-butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl, octyl, cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl; R₂ and R₃ are independently selected from hydrogen, fluorine, chlorine, bromine, iodine, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, alkyl, haloalkyl, alkoxy, haloalkoxy, arylalkoxy, cycloalkyl, cycloalkyloxy, aryl, heterocyclyl, heteroaryl, alkylamino, —COOR_(a), —C(O)R_(b), —C(S)R_(a), —C(O)NR_(a)R_(b), —C(S)NR_(a)R_(b), —NR_(a)C(O)NR_(b)R_(c), NR_(a)C(S)NR_(b)R_(c), —N(R_(a))SOR_(b), —N(R_(a))SO₂R_(b), —NR_(a)C(O)OR_(b), —NR_(a)R_(b), —NR_(a)C(O)R_(b)—, NR_(a)C(S)R_(b)—, —SONR_(a)R_(b)—, —SO₂NR_(a)R_(b)—, —OR_(a), —OR_(a)C(O)OR_(b)—, —OC(O)NR_(a)R_(b), OC(O)R_(a), —OC(O)NR_(a)R_(b)—, —R_(a)NR_(b)R_(c), —R_(a)OR_(b)—, —SR_(a), —SOR_(a) or —SO₂R_(a), wherein R_(a), R_(b) and R_(c) are independently selected from hydrogen, alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl and hetroarylalkyl; R₄ is selected from hydrogen, substituted or unsubstituted aryl selected from the group consisting of phenyl, naphthyl, biphenyl and indanyl, heteroaryl selected from the group consisting of pyridinyl, pyridazinyl, pyrimidyl, triazinyl, pyrrolyl, indolyl, pyrazolyl, imidazolyl, pyrazinyl, pyrimidinyl, tetrazolyl, furyl, thienyl, thiazolyl, isoxazolyl, oxazolyl and quinolinyl, cycloalkyl selected from the group consisting of cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cyclooctyl, alkyl selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl and octyl, haloalkyl selected from the group consisting of trichloromethyl, trifluoromethyl, difluoromethyl, trifluoroethyl, trichloroethyl, monofluoromethyl and monochloromethyl; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅, or —NHSO₂R₅, wherein R₅ and R₆ are selected from hydrogen, substituted or unsubstituted aryl selected from the group consisting of phenyl, naphthyl, biphenyl and indanyl, heteroaryl selected from the group consisting of pyridinyl, pyridazinyl, pyrimidyl, triazinyl, pyrrolyl, indolyl, pyrazolyl, imidazolyl, pyrazinyl, pyrimidinyl, tetrazolyl, furyl, thienyl, thiazolyl, isoxazolyl, oxazolyl and quinolinyl, cycloalkyl selected from the group consisting of cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cyclooctyl, alkyl group selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl and octyl; R₅ and R₆ are optionally substituted with one or more selected from halogen, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, alkyl, haloalkyl, alkoxy, haloalkoxy, arylalkoxy, cycloalkyl, cycloalkyloxy, aryl, heterocyclyl, heteroaryl, alkylamino, —COOR^(a), —C(O)R^(b), —C(S)R^(a), —C(O)NR^(a)R^(b), —C(S)NR^(a)R^(b), —NR^(a)C(O)NR^(b)R^(c), NR^(a)C(S)NR^(b)R^(c), —N(R^(a))SOR^(b), —N(R^(a))SO₂R^(b), —NR^(a)C(O)OR^(b), —NR^(a)R^(b), —NR^(a)C(O)R^(b)—, NR^(a)C(S)R^(b)—, —SONR^(a)R^(b)—, —SO₂NR^(a)R^(b)—, —OR^(a), —OR^(a)C(O)OR^(b)—, —OC(O)NR^(a)R^(b), OC(O)R^(a), —OC(O)NR^(a)R^(b)—, —R^(a)NR^(b)R^(c), —R^(a)OR^(b)—, —SR^(a), —SOR^(a) or —SO₂R^(a), wherein R^(a), R^(b) and R^(c) are independently selected from hydrogen or optionally substituted groups selected from alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl or hetroarylalkyl.
 4. The compound of Formula (1) as claimed in claim 1, wherein ---- is a single bond; X is —O—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈cycloalkyl; R₂ is hydrogen; R₃ is selected from halogen, C₁-C₈ alkyl, C₁-C₈haloalkyl substituted up to 3 halogen groups selected from fluoro, chloro, bromo, or iodo, C₁-C₈alkoxy, C₁-C₈haloalkoxy, C₅-C₁₈arylalkoxy, C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈heterocyclyl or C₂-C₁₈heteroaryl; R₄ is selected from hydrogen, C₁-C₈ alkyl, C₃-C₈cycloalkyl, C₃-C₈cyloalkenyl, C₃-C₈cycloalkylalkyl, C₅-C₁₈ aryl, C₅-C₁₈arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heterocyclylalkyl, C₂-C₁₈heteroaryl, C₂-C₁₈ heteroarylalkyl or C₁-C₈haloalkyl, wherein alkyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano, amide, sulfonamide and carbamate; wherein the heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from the group consisting of hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅; wherein R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₅-C₁₈ aryl, C₂-C₁₈heteroaryl, C₃-C₈cycloalkyl or C₁-C₈ alkyl; wherein R₅ and R₆ are optionally substituted with one or more substituents selected fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C₁-C₈haloalkylalkoxy, C₁-C₈haloalkoxy, C₅-C₁₈arylalkoxy; C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₆-C₁₈ aryl, C₂-C₁₈heterocyclyl, or C₂-C₁₈heteroaryl.
 5. The compound of Formula (1) as claimed in claim 2, wherein ---- is a single bond or a double bond; X is selected from —O— or —N—; n is 0-1; R₁ is selected from C₁-C₂ alkyl; R₂ and R₃ are independently selected from hydrogen, halogen, C₁-C₈ haloalkyl, C₁-C₈ alkoxy, and C₁-C₈ haloalkoxy; R₄ is selected from hydrogen, C₁-C₈alkyl, C₃-C₈cycloalkyl, C₃-C₈cycloalkylalkyl, C₅-C₁₈aryl, C₂-C₁₈heteroaryl, or C₁-C₈haloalkyl, wherein alkyl, cycloalkyl, cycloalkylalkyl, aryl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, and cyano, wherein the heteroaryl contains up to three heteroatoms selected from O or N; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, -or NHCOR₅, wherein R₅ and R₆ are independently selected from hydrogen, C₅-C₁₈aryl, or C₁-C₈alkyl; wherein R₅ and R₆ are optionally substituted with one or more substituents selected from fluorine, chlorine, bromine, iodine, hydroxy, and cyano.
 6. The compound of Formula (1) as claimed in claim 2, wherein R₁ is selected from methyl and isopropyl; R₂ is hydrogen; R₃ is selected from, halogen, C₁-C₂ haloalkyl, C₁-C₂ alkoxy, and C₁-C₂ haloalkoxy; wherein haloalkyl and haloalkoxy are substituted with one or more substituents selected from fluorine and chlorine; R₄ is selected from hydrogen, C₁-C₂alkyl, C₃-C₈cycloalkyl, C₃-C₈cycloalkylalkyl, C₅-C₆ aryl, C₅-C₆heteroaryl, or C₁-C₂haloalkyl, wherein alkyl, cycloalkylalkyl, aryl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, and cyano, wherein the heteroaryl contains one heteroatom as N; Z is selected from hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, -or NHCOR₅, wherein R₅ and R₆ are independently selected from hydrogen, C₆ aryl, or C₁-C₃alkyl; wherein C₆ aryl is substituted with hydroxyl.
 7. The compound of Formula (1) as claimed in claim 4, wherein ---- is a single bond; X is —O—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈cycloalkyl; R₂ is hydrogen; R₃ is selected from halogen, C₁-C₈ alkyl, C₁-C₈haloalkyl substituted up to 3 halogen groups selected from fluoro, chloro, bromo, or iodo, C₁-C₈alkoxy, C₁-C₈haloalkoxy, C₅-C₁₈arylalkoxy, C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈heterocyclyl, or C₂-C₁₈heteroaryl; R₄ is selected from hydrogen, C₁-C₈ alkyl, C₃-C₈cycloalkyl, C₅-C₁₈ aryl, C₅-C₁₈arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl, C₂-C₁₈heteroarylalkyl or C₁-C₈haloalkyl, wherein alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano, amide, sulfonamide, and carbamate; wherein the heterocyclyl, heteroaryl and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from the group consisting of hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅ or —NHSO₂R₅; R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₅-C₁₈ aryl, C₂-C₁₈heteroaryl, C₃-C₈cycloalkyl or C₁-C₈ alkyl; wherein R₅ and R₆ are optionally substituted with one or more substituents selected from fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C₁-C₈haloalkylalkoxy, C₁-C₈haloalkoxy, C₅-C₁₈arylalkoxy, C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₆-C₁₈ aryl, C₂-C₁₈heterocyclyl, or C₂-C₁₈heteroaryl.
 8. The compound of Formula (1) as claimed in claim 1, wherein ---- is a double bond; X is —N—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈ cycloalkyl; R₂ is hydrogen; R₃ is selected from halogen, C₁-C₈ alkyl, C₁-C₈haloalkyl substituted up to three halogens selected from fluoro, chloro, bromo, or iodo, C₁-C₈alkoxy, C₁-C₈haloalkoxy, C₅-C₁₈arylalkoxy, C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈heterocyclyl or C₂-C₁₈heteroaryl; R₄ is selected from hydrogen, C₁-C₈ alkyl, C₃-C₈cycloalkyl, C₃-C₈cyloalkenyl, C₃-C₈ cycloalkylalkyl, C₅-C₁₈ aryl, C₅-C₁₈arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heterocyclylalkyl, C₂-C₁₈heteroaryl, C₂-C₁₈heteroarylalkyl, or C₁-C₈haloalkyl; wherein alkyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano, amide, sulfonamide and carbamate; wherein the heterocyclyl, heterocyclylalkyl, heteroaryl and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from the group consisting of hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, —NHCOR₅, or —NHSO₂R₅; R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₅-C₁₈ aryl, C₂-C₁₈heteroaryl, C₃-C₈cycloalkyl, or C₁-C₈ alkyl; wherein R₅ and R₆ are optionally substituted with, the one or more substituents are selected from halogen; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C₁-C₈ haloalkylalkoxy, C₁-C₈ haloalkoxy, C₅-C₁₈ arylalkoxy, C₃-C₈ cycloalkyl, C₃-C₈ cycloalkyloxy, C₆-C₁₈ aryl, C₂-C₁₈ heterocyclyl, or C₂-C₁₈ heteroaryl.
 9. The compound of Formula (1) as claimed in claim 6, wherein ---- is a double bond; X is —N—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈ cycloalkyl; R₂ is hydrogen; R₃ is selected from halogen, C₁-C₈ alkyl, C₁-C₈ haloalkyl substituted up to 3 halogen groups selected from fluoro, chloro, bromo, iodo, C₁-C₈ alkoxy, C₁-C₈ haloalkoxy, C₅-C₁₈ arylalkoxy, C₃-C₈ cycloalkyl, C₃-C₈ cycloalkyloxy, C₆-C₁₈ aryl, C₂-C₁₈ heterocyclyl, or C₅-C₁₈ heteroaryl; R₄ is selected from hydrogen, C₁-C₈ alkyl, C₃-C₈ cycloalkyl, C₅-C₁₈ aryl, C₅-C₁₈ arylalkyl, C₂-C₁₈ heterocyclyl, C₂-C₁₈ heteroaryl, C₂-C₁₈ heteroarylalkyl, or C₁-C₈ haloalkyl; wherein alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl and heteroarylalkyl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano; wherein the heterocyclyl, heteroaryl, and heteroarylalkyl contains up to three heteroatoms selected from O, N or S; Z is selected from the group consisting of hydrogen, —CH₂OR₅, —COOR₅, —CONR₅R₆, —NHCOOR₅, or —NHCOR₅; wherein R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₆-C₁₈ aryl, C₂-C₁₈ heteroaryl, C₃-C₈ cycloalkyl or C₁-C₈ alkyl wherein; R₅ and R₆ are optionally substituted, with one or more substituents selected from fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C₁-C₈ haloalkylalkoxy, C₁-C₈ haloalkoxy, C₅-C₁₈ arylalkoxy, C₃-C₈ cycloalkyl, C₃-C₈ cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈ heterocyclyl, or C₂-C₁₈ heteroaryl.
 10. The compound of the Formula (Ia),

wherein X is selected from —O— or —N—; n is 0-1; R₁ is selected from C₁-C₈ alkyl or C₃-C₈ cycloalkyl; R₂ and R₃ are independently selected from hydrogen, fluoro, chloro, bromo, iodo, hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C₁-C₈haloalkyl independently substituted with up to 3 halogen groups selected from fluoro, chloro, bromo, or iodo, C₁-C₈alkoxy, C₁-C₈haloalkoxy, C₅-C₁₈arylalkoxy, C₃-C₈cycloalkyl, C₃-C₈cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl, alkylamino, —COOR_(a), —C(O)R_(b), —C(S)R_(a), —C(O)NR_(a)R_(b), —C(S)NR_(a)R_(b), —NR_(a)C(O)NR_(b)R_(c), NR_(a)C(S)NR_(b)R_(c), —N(R_(a))SOR_(b), —N(R_(a))SO₂R_(b), —NR_(a)C(O)OR_(b), —NR_(a)R_(b), —NR_(a)C(O)R_(b)—, NR_(a)C(S)R_(b)—, —SONR_(a)R_(b)—, —SO₂NR_(a)R_(b)—, —OR_(a), —OR_(a)C(O)OR_(b)—, —OC(O)NR_(a)R_(b), OC(O)R_(a), —OC(O)NR_(a)R_(b)—, —R_(a)NR_(b)R_(c), —R_(a)OR_(b)—, —SR_(a), —SOR_(a) or —SO₂R_(a), wherein R_(a), R_(b) and R_(c) are independently selected from hydrogen, C₁-C₈ alkyl, C₃-C₈cycloalkyl, C₅-C₁₈aryl, C₅-C₁₈arylalkyl, C₂-C₁₈heterocyclyl, C₂-C₁₈heteroaryl, and C₂-C₁₈hetroarylalkyl, R₄ is selected from hydrogen, C₁-C₈ alkyl, C₃-C₈ cycloalkyl, C₆-C₁₈aryl or C₂-C₁₈heteroaryl; wherein alkyl, cycloalkyl, aryl, and heteroaryl are independently unsubstituted or substituted with up to three substituents independently selected from halogen, alkyl, alkenyl, alkynyl, alkoxy, acyl, acyloxy, amino, hydroxy, keto, nitro, azido, cyano; wherein the heteroaryl contains up to three heteroatoms selected from O, N or S; Z is selected from —CH₂OR₅, —COOR₅, —CONR₅R₆, or —CONHR₇; R₅ and R₆ are independently selected from hydrogen, hydroxyl, C₅-C₁₈ aryl, C₂-C₁₈heteroaryl, C₃-C₈cycloalkyl or C₁-C₈ alkyl; wherein R₅ and R₆ are optionally substituted, with one or more substituents selected from fluorine, chlorine, bromine, iodine; hydroxy, nitro, cyano, azido, nitroso, oxo (═O), thioxo (═S), —SO₂—, amino, hydrazino, formyl, C₁-C₈ alkyl, C₁-C₈ haloalkylalkoxy, C₁-C₈ haloalkoxy; C₅-C₁₈ arylalkoxy; C₃-C₈ cycloalkyl, C₃-C₈ cycloalkyloxy, C₅-C₁₈ aryl, C₂-C₁₈ heterocyclyl, C₂-C₁₈ heteroaryl, alkylamino, —COOR^(a), —C(O)R^(b), —C(S)R^(a), —C(O)NR^(a)R^(b), —C(S)NR^(a)R^(b), —NR^(a)C(O)NR^(b)R^(c), NR^(a)C(S)NR^(b)R^(c), —N(R^(a))SOR^(b), —N(R^(a))SO₂R^(b), —NR^(a)C(O)OR^(b), —NR^(a)R^(b), —NR^(a)C(O)R^(b)—, NR^(a)C(S)R^(b)—, —SONR^(a)R^(b)—, —SO₂NR^(a)R^(b)—, —OR^(a), —OR^(a)C(O)OR^(b)—, —OC(O)NR^(a)R^(b), —OC(O)R^(a), —OC(O)NR^(a)R^(b)—, —R^(a)NR^(b)R^(c), —R^(a)OR^(b)—, —SR^(a), —SOR^(a) or —SO₂R^(a), wherein R^(a), R^(b) and R^(c) are independently selected from hydrogen or optionally substituted groups selected from alkyl, cycloalkyl, aryl, arylalkyl, heterocyclyl, heteroaryl or hetroarylalkyl, R₇ represents —OR₅, ortho substituted aniline, amino aryl and amino heteroaryl, which may be further substituted, wherein R₈ is selected from hydrogen or optionally substituted groups selected from alkyl, aryl, heterocyclyl, and —COR₉, wherein R₉ is selected from alkyl, aryl, heteroaryl, cycloalkyl or heterocyclyl.
 11. The compound of formula (I) as claimed in claim 1, or the tautomeric form, stereoisomer, polymorph, solvate, or pharmaceutically acceptable salt thereof, which is selected from a group consisting of: ±Ethyl 2-(-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, Ethyl 2-((5S,7R)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, Ethyl 2-((5S,7S)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, Ethyl 2-((5R,7S)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, Ethyl 2-((5R,7R)-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, ±Ethyl 2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, ±Ethyl 2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, ±Ethyl 2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, ±Ethyl 2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, ±Ethyl 2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)acetate, ±7-(4-chlorophenyl)-5-(2-hydroxyethyl)-9-methoxy-2-methyl-5,7-dihydrobenzo[5,6]oxepino[4,3-c]pyridin-3(2H)-one, ±2-(-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7R)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7S)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, 2-((5S,7R)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, 2-((5S,7S)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, 2-((5R,7S)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, 2-((5R,7R)-7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7R)-7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7S)-7-cyclohexyl-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7R)-7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7S)-7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7S)-9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7R)-9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±-2-((5S,7R)-7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide ±-2-((5S,7S)-7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7R)-2-methyl-3-oxo-7-phenyl-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±2-((5S,7S)-2-methyl-3-oxo-7-phenyl-9-(trifluoromethyl)-2,3,5,7-tetrahydrobenzo[5,6]oxepino[4,3-c]pyridin-5-yl)-N-ethylacetamide, ±Ethyl 2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(9-methoxy-2,7-dimethyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(7-(4-chlorophenyl)-2-isopropyl-9-methoxy-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(7-(2,6-difluorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±Ethyl 2-(7-(4-chloro-2-methylphenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetate, ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (S)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (R)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (S)-2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (R)-2-(7-cyclohexyl-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (S)-2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (R)-2-(9-methoxy-2-methyl-3-oxo-7-(pyridin-2-yl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetamide, ±2-(7-(4-chlorophenyl)-9-hydroxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (S)-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (R)-2-(7-(cyclopropylmethyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(4-chlorophenyl)-9-(difluoromethoxy)-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (S)-2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, (R)-2-(9-methoxy-2-methyl-3-oxo-7-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(4-cyanophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(9-methoxy-2-methyl-7-(5-methylpyridin-2-yl)-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(4-chlorophenyl)-2-isopropyl-9-methoxy-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(4-chlorophenyl)-9-fluoro-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(2,6-difluorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(4-chloro, 2-methylphenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-ethylacetamide, ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-(4-hydroxyphenyl)acetamide, (S)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-(4-hydroxyphenyl)acetamide, (R)-2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)-N-(4-hydroxyphenyl)acetamide, ±7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one, (S)-7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one, (R)-7-(4-chlorophenyl)-9-methoxy-2,5-dimethyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one, ±7-(4-chlorophenyl)-9-methoxy-2-methyl-2H-benzo[c]pyrido[3,4-e]azepin-3(5H)-one, ±2-(7-(4-chlorophenyl)-2-methyl-3-oxo-9-(trifluoromethyl)-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)acetic acid, ±2-(7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-]azepin-5-yl)acetic acid, ±tert-butyl ((7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-enzo[c]pyrido[3,4-e]azepin-5-yl)methyl)carbamate, and ±N-((7-(4-chlorophenyl)-9-methoxy-2-methyl-3-oxo-3,5-dihydro-2H-benzo[c]pyrido[3,4-e]azepin-5-yl)methyl)acetamide.
 12. A pharmaceutical composition comprising a compound of formula (I) or a pharmaceutically acceptable salt thereof of as claimed in claim 1, together with a pharmaceutically acceptable carrier, optionally in combination with one or more other pharmaceutical compositions.
 13. The pharmaceutical composition according to claim 12, wherein the composition is in the form of a tablet, capsule, powder, syrup, solution, aerosol or suspension. 